//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2009 Aaron Newton <http://clientcide.com/>, Valerio Proietti <http://mad4milk.net> & the MooTools team <http://mootools.net/developers>, MIT Style License.

/*
---

script: More.js

name: More

description: MooTools More

license: MIT-style license

requires:
  - Core/MooTools

provides: [MooTools.More]

...
*/

MooTools.More = {
	'version': '1.2.5.1',
	'build': '254884f2b83651bf95260eed5c6cceb838e22d8e'
};


/*
---

script: Class.Refactor.js

name: Class.Refactor

description: Extends a class onto itself with new property, preserving any items attached to the class's namespace.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Class
  - /MooTools.More

# Some modules declare themselves dependent on Class.Refactor
provides: [Class.refactor, Class.Refactor]

...
*/

Class.refactor = function(original, refactors){

	$each(refactors, function(item, name){
		var origin = original.prototype[name];
		if (origin && (origin = origin._origin ? origin._origin: origin) && typeof item == 'function') original.implement(name, function(){
			var old = this.previous;
			this.previous = origin;
			var value = item.apply(this, arguments);
			this.previous = old;
			return value;
		}); else original.implement(name, item);
	});

	return original;

};


/*
---

script: Class.Binds.js

name: Class.Binds

description: Automagically binds specified methods in a class to the instance of the class.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Class
  - /MooTools.More

provides: [Class.Binds]

...
*/

Class.Mutators.Binds = function(binds){
    return binds;
};

Class.Mutators.initialize = function(initialize){
	return function(){
		$splat(this.Binds).each(function(name){
			var original = this[name];
			if (original) this[name] = original.bind(this);
		}, this);
		return initialize.apply(this, arguments);
	};
};


/*
---

script: Class.Occlude.js

name: Class.Occlude

description: Prevents a class from being applied to a DOM element twice.

license: MIT-style license.

authors:
  - Aaron Newton

requires: 
  - Core/Class
  - Core/Element
  - /MooTools.More

provides: [Class.Occlude]

...
*/

Class.Occlude = new Class({

	occlude: function(property, element){
		element = document.id(element || this.element);
		var instance = element.retrieve(property || this.property);
		if (instance && !$defined(this.occluded))
			return this.occluded = instance;

		this.occluded = false;
		element.store(property || this.property, this);
		return this.occluded;
	}

});


/*
---

script: Element.Measure.js

name: Element.Measure

description: Extends the Element native object to include methods useful in measuring dimensions.

credits: "Element.measure / .expose methods by Daniel Steigerwald License: MIT-style license. Copyright: Copyright (c) 2008 Daniel Steigerwald, daniel.steigerwald.cz"

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Element.Style
  - Core/Element.Dimensions
  - /MooTools.More

provides: [Element.Measure]

...
*/

Element.implement({

	measure: function(fn){
		var vis = function(el) {
			return !!(!el || el.offsetHeight || el.offsetWidth);
		};
		if (vis(this)) return fn.apply(this);
		var parent = this.getParent(),
			restorers = [],
			toMeasure = []; 
		while (!vis(parent) && parent != document.body) {
			toMeasure.push(parent.expose());
			parent = parent.getParent();
		}
		var restore = this.expose();
		var result = fn.apply(this);
		restore();
		toMeasure.each(function(restore){
			restore();
		});
		return result;
	},

	expose: function(){
		if (this.getStyle('display') != 'none') return $empty;
		var before = this.style.cssText;
		this.setStyles({
			display: 'block',
			position: 'absolute',
			visibility: 'hidden'
		});
		return function(){
			this.style.cssText = before;
		}.bind(this);
	},

	getDimensions: function(options){
		options = $merge({computeSize: false},options);
		var dim = {};
		var getSize = function(el, options){
			return (options.computeSize)?el.getComputedSize(options):el.getSize();
		};
		var parent = this.getParent('body');
		if (parent && this.getStyle('display') == 'none'){
			dim = this.measure(function(){
				return getSize(this, options);
			});
		} else if (parent){
			try { //safari sometimes crashes here, so catch it
				dim = getSize(this, options);
			}catch(e){}
		} else {
			dim = {x: 0, y: 0};
		}
		return $chk(dim.x) ? $extend(dim, {width: dim.x, height: dim.y}) : $extend(dim, {x: dim.width, y: dim.height});
	},

	getComputedSize: function(options){
		//legacy support for my stupid spelling error
		if (options && options.plains) options.planes = options.plains;
		
		options = $merge({
			styles: ['padding','border'],
			planes: {
				height: ['top','bottom'],
				width: ['left','right']
			},
			mode: 'both'
		}, options);
		
		var size = {width: 0,height: 0};
		switch (options.mode){
			case 'vertical':
				delete size.width;
				delete options.planes.width;
				break;
			case 'horizontal':
				delete size.height;
				delete options.planes.height;
				break;
		}
		var getStyles = [];
		//this function might be useful in other places; perhaps it should be outside this function?
		$each(options.planes, function(plane, key){
			plane.each(function(edge){
				options.styles.each(function(style){
					getStyles.push((style == 'border') ? style + '-' + edge + '-' + 'width' : style + '-' + edge);
				});
			});
		});
		var styles = {};
		getStyles.each(function(style){ styles[style] = this.getComputedStyle(style); }, this);
		var subtracted = [];
		$each(options.planes, function(plane, key){ //keys: width, height, planes: ['left', 'right'], ['top','bottom']
			var capitalized = key.capitalize();
			size['total' + capitalized] = size['computed' + capitalized] = 0;
			plane.each(function(edge){ //top, left, right, bottom
				size['computed' + edge.capitalize()] = 0;
				getStyles.each(function(style, i){ //padding, border, etc.
					//'padding-left'.test('left') size['totalWidth'] = size['width'] + [padding-left]
					if (style.test(edge)){
						styles[style] = styles[style].toInt() || 0; //styles['padding-left'] = 5;
						size['total' + capitalized] = size['total' + capitalized] + styles[style];
						size['computed' + edge.capitalize()] = size['computed' + edge.capitalize()] + styles[style];
					}
					//if width != width (so, padding-left, for instance), then subtract that from the total
					if (style.test(edge) && key != style &&
						(style.test('border') || style.test('padding')) && !subtracted.contains(style)){
						subtracted.push(style);
						size['computed' + capitalized] = size['computed' + capitalized]-styles[style];
					}
				});
			});
		});

		['Width', 'Height'].each(function(value){
			var lower = value.toLowerCase();
			if(!$chk(size[lower])) return;

			size[lower] = size[lower] + this['offset' + value] + size['computed' + value];
			size['total' + value] = size[lower] + size['total' + value];
			delete size['computed' + value];
		}, this);

		return $extend(styles, size);
	}

});

/*
---

script: Element.Position.js

name: Element.Position

description: Extends the Element native object to include methods useful positioning elements relative to others.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Element.Dimensions
  - /Element.Measure

provides: [Element.Position]

...
*/

(function(){

var original = Element.prototype.position;

Element.implement({

	position: function(options){
		//call original position if the options are x/y values
		if (options && ($defined(options.x) || $defined(options.y))) return original ? original.apply(this, arguments) : this;
		$each(options||{}, function(v, k){ if (!$defined(v)) delete options[k]; });
		options = $merge({
			// minimum: { x: 0, y: 0 },
			// maximum: { x: 0, y: 0},
			relativeTo: document.body,
			position: {
				x: 'center', //left, center, right
				y: 'center' //top, center, bottom
			},
			edge: false,
			offset: {x: 0, y: 0},
			returnPos: false,
			relFixedPosition: false,
			ignoreMargins: false,
			ignoreScroll: false,
			allowNegative: false
		}, options);
		//compute the offset of the parent positioned element if this element is in one
		var parentOffset = {x: 0, y: 0}, 
				parentPositioned = false;
		/* dollar around getOffsetParent should not be necessary, but as it does not return
		 * a mootools extended element in IE, an error occurs on the call to expose. See:
		 * http://mootools.lighthouseapp.com/projects/2706/tickets/333-element-getoffsetparent-inconsistency-between-ie-and-other-browsers */
		var offsetParent = this.measure(function(){
			return document.id(this.getOffsetParent());
		});
		if (offsetParent && offsetParent != this.getDocument().body){
			parentOffset = offsetParent.measure(function(){
				return this.getPosition();
			});
			parentPositioned = offsetParent != document.id(options.relativeTo);
			options.offset.x = options.offset.x - parentOffset.x;
			options.offset.y = options.offset.y - parentOffset.y;
		}
		//upperRight, bottomRight, centerRight, upperLeft, bottomLeft, centerLeft
		//topRight, topLeft, centerTop, centerBottom, center
		var fixValue = function(option){
			if ($type(option) != 'string') return option;
			option = option.toLowerCase();
			var val = {};
			
			if (option.test('left')) val.x = 'left';
			else if (option.test('right')) val.x = 'right';
			else val.x = 'center';
			
			if (option.test('upper') || option.test('top')) val.y = 'top';
			else if (option.test('bottom')) val.y = 'bottom';
			else val.y = 'center';
			
			return val;
		};
		options.edge = fixValue(options.edge);
		options.position = fixValue(options.position);
		if (!options.edge){
			if (options.position.x == 'center' && options.position.y == 'center') options.edge = {x:'center', y:'center'};
			else options.edge = {x:'left', y:'top'};
		}

		this.setStyle('position', 'absolute');
		var rel = document.id(options.relativeTo) || document.body,
				calc = rel == document.body ? window.getScroll() : rel.getPosition(),
				top = calc.y, left = calc.x;

		var dim = this.getDimensions({computeSize: true, styles:['padding', 'border','margin']});
		var pos = {},
				prefY = options.offset.y,
				prefX = options.offset.x,
				winSize = window.getSize();
		switch(options.position.x){
			case 'left':
				pos.x = left + prefX;
				break;
			case 'right':
				pos.x = left + prefX + rel.offsetWidth;
				break;
			default: //center
				pos.x = left + ((rel == document.body ? winSize.x : rel.offsetWidth)/2) + prefX;
				break;
		}
		switch(options.position.y){
			case 'top':
				pos.y = top + prefY;
				break;
			case 'bottom':
				pos.y = top + prefY + rel.offsetHeight;
				break;
			default: //center
				pos.y = top + ((rel == document.body ? winSize.y : rel.offsetHeight)/2) + prefY;
				break;
		}
		if (options.edge){
			var edgeOffset = {};

			switch(options.edge.x){
				case 'left':
					edgeOffset.x = 0;
					break;
				case 'right':
					edgeOffset.x = -dim.x-dim.computedRight-dim.computedLeft;
					break;
				default: //center
					edgeOffset.x = -(dim.totalWidth/2);
					break;
			}
			switch(options.edge.y){
				case 'top':
					edgeOffset.y = 0;
					break;
				case 'bottom':
					edgeOffset.y = -dim.y-dim.computedTop-dim.computedBottom;
					break;
				default: //center
					edgeOffset.y = -(dim.totalHeight/2);
					break;
			}
			pos.x += edgeOffset.x;
			pos.y += edgeOffset.y;
		}
		pos = {
			left: ((pos.x >= 0 || parentPositioned || options.allowNegative) ? pos.x : 0).toInt(),
			top: ((pos.y >= 0 || parentPositioned || options.allowNegative) ? pos.y : 0).toInt()
		};
		var xy = {left: 'x', top: 'y'};
		['minimum', 'maximum'].each(function(minmax) {
			['left', 'top'].each(function(lr) {
				var val = options[minmax] ? options[minmax][xy[lr]] : null;
				if (val != null && ((minmax == 'minimum') ? pos[lr] < val: pos[lr] > val)) pos[lr] = val;
			});
		});
		if (rel.getStyle('position') == 'fixed' || options.relFixedPosition){
			var winScroll = window.getScroll();
			pos.top+= winScroll.y;
			pos.left+= winScroll.x;
		}
		var relScroll = rel.getScroll();
		if (options.ignoreScroll) {
			pos.top -= relScroll.y;
			pos.left -= relScroll.x;
		} else {
			pos.top += relScroll.y;
			pos.left += relScroll.x;
		}
		if (options.ignoreMargins) {
			pos.left += (
				options.edge.x == 'right' ? dim['margin-right'] : 
				options.edge.x == 'center' ? -dim['margin-left'] + ((dim['margin-right'] + dim['margin-left'])/2) : 
					- dim['margin-left']
			);
			pos.top += (
				options.edge.y == 'bottom' ? dim['margin-bottom'] : 
				options.edge.y == 'center' ? -dim['margin-top'] + ((dim['margin-bottom'] + dim['margin-top'])/2) : 
					- dim['margin-top']
			);
		}
		pos.left = Math.ceil(pos.left);
		pos.top = Math.ceil(pos.top);
		if (options.returnPos) return pos;
		else this.setStyles(pos);
		return this;
	}

});

})();


/*
---

script: Element.Shortcuts.js

name: Element.Shortcuts

description: Extends the Element native object to include some shortcut methods.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Element.Style
  - /MooTools.More

provides: [Element.Shortcuts]

...
*/

Element.implement({

	isDisplayed: function(){
		return this.getStyle('display') != 'none';
	},

	isVisible: function(){
		var w = this.offsetWidth,
			h = this.offsetHeight;
		return (w == 0 && h == 0) ? false : (w > 0 && h > 0) ? true : this.style.display != 'none';
	},

	toggle: function(){
		return this[this.isDisplayed() ? 'hide' : 'show']();
	},

	hide: function(){
		var d;
		try {
			//IE fails here if the element is not in the dom
			d = this.getStyle('display');
		} catch(e){}
		if (d == "none") return this;
		return this.store('element:_originalDisplay', d || '').setStyle('display', 'none');
	},

	show: function(display){
		if (!display && this.isDisplayed()) return this;
		display = display || this.retrieve('element:_originalDisplay') || 'block';
		return this.setStyle('display', (display == 'none') ? 'block' : display);
	},

	swapClass: function(remove, add){
		return this.removeClass(remove).addClass(add);
	}
});

Document.implement({
	clearSelection: function(){
		if (document.selection && document.selection.empty) {
			document.selection.empty();
		} else if (window.getSelection) {
			var selection = window.getSelection();
			if (selection && selection.removeAllRanges) selection.removeAllRanges();
		}
	}
});

/*
---

script: OverText.js

name: OverText

description: Shows text over an input that disappears when the user clicks into it. The text remains hidden if the user adds a value.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Options
  - Core/Events
  - Core/Element.Event
  - /Class.Binds
  - /Class.Occlude
  - /Element.Position
  - /Element.Shortcuts

provides: [OverText]

...
*/

var OverText = new Class({

	Implements: [Options, Events, Class.Occlude],

	Binds: ['reposition', 'assert', 'focus', 'hide'],

	options: {/*
		textOverride: null,
		onFocus: $empty()
		onTextHide: $empty(textEl, inputEl),
		onTextShow: $empty(textEl, inputEl), */
		element: 'label',
		positionOptions: {
			position: 'upperLeft',
			edge: 'upperLeft',
			offset: {
				x: 4,
				y: 2
			}
		},
		poll: false,
		pollInterval: 250,
		wrap: false
	},

	property: 'OverText',

	initialize: function(element, options){
		this.element = document.id(element);
		if (this.occlude()) return this.occluded;
		this.setOptions(options);
		this.attach(this.element);
		OverText.instances.push(this);
		if (this.options.poll) this.poll();
		return this;
	},

	toElement: function(){
		return this.element;
	},

	attach: function(){
		var val = this.options.textOverride || this.element.get('alt') || this.element.get('title');
		if (!val) return;
		this.text = new Element(this.options.element, {
			'class': 'overTxtLabel',
			styles: {
				lineHeight: 'normal',
				position: 'absolute',
				cursor: 'text'
			},
			html: val,
			events: {
				click: this.hide.pass(this.options.element == 'label', this)
			}
		}).inject(this.element, 'after');
		if (this.options.element == 'label') {
			if (!this.element.get('id')) this.element.set('id', 'input_' + new Date().getTime());
			this.text.set('for', this.element.get('id'));
		}

		if (this.options.wrap) {
			this.textHolder = new Element('div', {
				styles: {
					lineHeight: 'normal',
					position: 'relative'
				},
				'class':'overTxtWrapper'
			}).adopt(this.text).inject(this.element, 'before');
		}

		return this.enable();
	},

	destroy: function(){
		this.element.eliminate('OverTextDiv').eliminate('OverText');
		this.disable();
		if (this.text) this.text.destroy();
		if (this.textHolder) this.textHolder.destroy();
		return this;
	},

	disable: function(){
		this.element.removeEvents({
			focus: this.focus,
			blur: this.assert,
			change: this.assert
		});
		window.removeEvent('resize', this.reposition);
		this.hide(true, true);
		return this;
	},

	enable: function(){
		this.element.addEvents({
			focus: this.focus,
			blur: this.assert,
			change: this.assert
		});
		window.addEvent('resize', this.reposition);
		this.assert(true);
		this.reposition();
		return this;
	},

	wrap: function(){
		if (this.options.element == 'label') {
			if (!this.element.get('id')) this.element.set('id', 'input_' + new Date().getTime());
			this.text.set('for', this.element.get('id'));
		}
	},

	startPolling: function(){
		this.pollingPaused = false;
		return this.poll();
	},

	poll: function(stop){
		//start immediately
		//pause on focus
		//resumeon blur
		if (this.poller && !stop) return this;
		var test = function(){
			if (!this.pollingPaused) this.assert(true);
		}.bind(this);
		if (stop) $clear(this.poller);
		else this.poller = test.periodical(this.options.pollInterval, this);
		return this;
	},

	stopPolling: function(){
		this.pollingPaused = true;
		return this.poll(true);
	},

	focus: function(){
		if (this.text && (!this.text.isDisplayed() || this.element.get('disabled'))) return;
		this.hide();
	},

	hide: function(suppressFocus, force){
		if (this.text && (this.text.isDisplayed() && (!this.element.get('disabled') || force))){
			this.text.hide();
			this.fireEvent('textHide', [this.text, this.element]);
			this.pollingPaused = true;
			if (!suppressFocus){
				try {
					this.element.fireEvent('focus');
					this.element.focus();
				} catch(e){} //IE barfs if you call focus on hidden elements
			}
		}
		return this;
	},

	show: function(){
		if (this.text && !this.text.isDisplayed()){
			this.text.show();
			this.reposition();
			this.fireEvent('textShow', [this.text, this.element]);
			this.pollingPaused = false;
		}
		return this;
	},

	assert: function(suppressFocus){
		this[this.test() ? 'show' : 'hide'](suppressFocus);
	},

	test: function(){
		var v = this.element.get('value');
		return !v;
	},

	reposition: function(){
		this.assert(true);
		if (!this.element.isVisible()) return this.stopPolling().hide();
		if (this.text && this.test()) this.text.position($merge(this.options.positionOptions, {relativeTo: this.element}));
		return this;
	}

});

OverText.instances = [];

$extend(OverText, {

	each: function(fn) {
		return OverText.instances.map(function(ot, i){
			if (ot.element && ot.text) return fn.apply(OverText, [ot, i]);
			return null; //the input or the text was destroyed
		});
	},
	
	update: function(){

		return OverText.each(function(ot){
			return ot.reposition();
		});

	},

	hideAll: function(){

		return OverText.each(function(ot){
			return ot.hide(true, true);
		});

	},

	showAll: function(){
		return OverText.each(function(ot) {
			return ot.show();
		});
	}

});

if (window.Fx && Fx.Reveal) {
	Fx.Reveal.implement({
		hideInputs: Browser.Engine.trident ? 'select, input, textarea, object, embed, .overTxtLabel' : false
	});
}

/*
---

script: Fx.Elements.js

name: Fx.Elements

description: Effect to change any number of CSS properties of any number of Elements.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Fx.CSS
  - /MooTools.More

provides: [Fx.Elements]

...
*/

Fx.Elements = new Class({

	Extends: Fx.CSS,

	initialize: function(elements, options){
		this.elements = this.subject = $$(elements);
		this.parent(options);
	},

	compute: function(from, to, delta){
		var now = {};

		for (var i in from){
			var iFrom = from[i], iTo = to[i], iNow = now[i] = {};
			for (var p in iFrom) iNow[p] = this.parent(iFrom[p], iTo[p], delta);
		}

		return now;
	},

	set: function(now){
		for (var i in now){
			if (!this.elements[i]) continue;

			var iNow = now[i];
			for (var p in iNow) this.render(this.elements[i], p, iNow[p], this.options.unit);
		}

		return this;
	},

	start: function(obj){
		if (!this.check(obj)) return this;
		var from = {}, to = {};

		for (var i in obj){
			if (!this.elements[i]) continue;

			var iProps = obj[i], iFrom = from[i] = {}, iTo = to[i] = {};

			for (var p in iProps){
				var parsed = this.prepare(this.elements[i], p, iProps[p]);
				iFrom[p] = parsed.from;
				iTo[p] = parsed.to;
			}
		}

		return this.parent(from, to);
	}

});


/*
---

script: Fx.Accordion.js

name: Fx.Accordion

description: An Fx.Elements extension which allows you to easily create accordion type controls.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Element.Event
  - /Fx.Elements

provides: [Fx.Accordion]

...
*/

Fx.Accordion = new Class({

	Extends: Fx.Elements,

	options: {/*
		onActive: $empty(toggler, section),
		onBackground: $empty(toggler, section),
		*/
		fixedHeight: false,
		fixedWidth: false,
		display: 0,
		show: false,
		height: true,
		width: false,
		opacity: true,
		alwaysHide: false,
		trigger: 'click',
		initialDisplayFx: true,
		returnHeightToAuto: true
	},

	initialize: function(){
		var params = Array.link(arguments, {
			'container': Element.type, //deprecated
			'options': Object.type,
			'togglers': $defined,
			'elements': $defined
		});
		this.parent(params.elements, params.options);
		this.togglers = $$(params.togglers);
		this.previous = -1;
		this.internalChain = new Chain();
		if (this.options.alwaysHide) this.options.wait = true;
		if ($chk(this.options.show)){
			this.options.display = false;
			this.previous = this.options.show;
		}
		if (this.options.start){
			this.options.display = false;
			this.options.show = false;
		}
		this.effects = {};
		if (this.options.opacity) this.effects.opacity = 'fullOpacity';
		if (this.options.width) this.effects.width = this.options.fixedWidth ? 'fullWidth' : 'offsetWidth';
		if (this.options.height) this.effects.height = this.options.fixedHeight ? 'fullHeight' : 'scrollHeight';
		for (var i = 0, l = this.togglers.length; i < l; i++) this.addSection(this.togglers[i], this.elements[i]);
		this.elements.each(function(el, i){
			if (this.options.show === i){
				this.fireEvent('active', [this.togglers[i], el]);
			} else {
				for (var fx in this.effects) el.setStyle(fx, 0);
			}
		}, this);
		if ($chk(this.options.display) || this.options.initialDisplayFx === false) this.display(this.options.display, this.options.initialDisplayFx);
		if (this.options.fixedHeight !== false) this.options.returnHeightToAuto = false;
		this.addEvent('complete', this.internalChain.callChain.bind(this.internalChain));
	},

	addSection: function(toggler, element){
		toggler = document.id(toggler);
		element = document.id(element);
		var test = this.togglers.contains(toggler);
		this.togglers.include(toggler);
		this.elements.include(element);
		var idx = this.togglers.indexOf(toggler);
		var displayer = this.display.bind(this, idx);
		toggler.store('accordion:display', displayer);
		toggler.addEvent(this.options.trigger, displayer);
		if (this.options.height) element.setStyles({'padding-top': 0, 'border-top': 'none', 'padding-bottom': 0, 'border-bottom': 'none'});
		if (this.options.width) element.setStyles({'padding-left': 0, 'border-left': 'none', 'padding-right': 0, 'border-right': 'none'});
		element.fullOpacity = 1;
		if (this.options.fixedWidth) element.fullWidth = this.options.fixedWidth;
		if (this.options.fixedHeight) element.fullHeight = this.options.fixedHeight;
		element.setStyle('overflow', 'hidden');
		if (!test){
			for (var fx in this.effects) element.setStyle(fx, 0);
		}
		return this;
	},

	removeSection: function(toggler, displayIndex) {
		var idx = this.togglers.indexOf(toggler);
		var element = this.elements[idx];
		var remover = function(){
			this.togglers.erase(toggler);
			this.elements.erase(element);
			this.detach(toggler);
		}.bind(this);
		if (this.now == idx || displayIndex != undefined) this.display($pick(displayIndex, idx - 1 >= 0 ? idx - 1 : 0)).chain(remover);
		else remover();
		return this;
	},

	detach: function(toggler){
		var remove = function(toggler) {
			toggler.removeEvent(this.options.trigger, toggler.retrieve('accordion:display'));
		}.bind(this);
		if (!toggler) this.togglers.each(remove);
		else remove(toggler);
		return this;
	},

	display: function(index, useFx){
		if (!this.check(index, useFx)) return this;
		useFx = $pick(useFx, true);
		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
		if (index == this.previous && !this.options.alwaysHide) return this;
		if (this.options.returnHeightToAuto){
			var prev = this.elements[this.previous];
			if (prev && !this.selfHidden){
				for (var fx in this.effects){
					prev.setStyle(fx, prev[this.effects[fx]]);
				}
			}
		}
		if ((this.timer && this.options.wait) || (index === this.previous && !this.options.alwaysHide)) return this;
		this.previous = index;
		var obj = {};
		this.elements.each(function(el, i){
			obj[i] = {};
			var hide;
			if (i != index){
				hide = true;
			} else if (this.options.alwaysHide && ((el.offsetHeight > 0 && this.options.height) || el.offsetWidth > 0 && this.options.width)){
				hide = true;
				this.selfHidden = true;
			}
			this.fireEvent(hide ? 'background' : 'active', [this.togglers[i], el]);
			for (var fx in this.effects) obj[i][fx] = hide ? 0 : el[this.effects[fx]];
		}, this);
		this.internalChain.clearChain();
		this.internalChain.chain(function(){
			if (this.options.returnHeightToAuto && !this.selfHidden){
				var el = this.elements[index];
				if (el) el.setStyle('height', 'auto');
			};
		}.bind(this));
		return useFx ? this.start(obj) : this.set(obj);
	}

});

/*
	Compatibility with 1.2.0
*/
var Accordion = new Class({

	Extends: Fx.Accordion,

	initialize: function(){
		this.parent.apply(this, arguments);
		var params = Array.link(arguments, {'container': Element.type});
		this.container = params.container;
	},

	addSection: function(toggler, element, pos){
		toggler = document.id(toggler);
		element = document.id(element);
		var test = this.togglers.contains(toggler);
		var len = this.togglers.length;
		if (len && (!test || pos)){
			pos = $pick(pos, len - 1);
			toggler.inject(this.togglers[pos], 'before');
			element.inject(toggler, 'after');
		} else if (this.container && !test){
			toggler.inject(this.container);
			element.inject(this.container);
		}
		return this.parent.apply(this, arguments);
	}

});

/*
---

script: Fx.Reveal.js

name: Fx.Reveal

description: Defines Fx.Reveal, a class that shows and hides elements with a transition.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Fx.Morph
  - /Element.Shortcuts
  - /Element.Measure

provides: [Fx.Reveal]

...
*/

Fx.Reveal = new Class({

	Extends: Fx.Morph,

	options: {/*	  
		onShow: $empty(thisElement),
		onHide: $empty(thisElement),
		onComplete: $empty(thisElement),
		heightOverride: null,
		widthOverride: null, */
		link: 'cancel',
		styles: ['padding', 'border', 'margin'],
		transitionOpacity: !Browser.Engine.trident4,
		mode: 'vertical',
		display: function(){
			return this.element.get('tag') != 'tr' ? 'block' : 'table-row';
		},
		hideInputs: Browser.Engine.trident ? 'select, input, textarea, object, embed' : false,
		opacity: 1
	},

	dissolve: function(){
		try {
			if (!this.hiding && !this.showing){
				if (this.element.getStyle('display') != 'none'){
					this.hiding = true;
					this.showing = false;
					this.hidden = true;
					this.cssText = this.element.style.cssText;
					var startStyles = this.element.getComputedSize({
						styles: this.options.styles,
						mode: this.options.mode
					});
					this.element.setStyle('display', $lambda(this.options.display).apply(this));
					if (this.options.transitionOpacity) startStyles.opacity = this.options.opacity;
					var zero = {};
					$each(startStyles, function(style, name){
						zero[name] = [style, 0];
					}, this);
					this.element.setStyle('overflow', 'hidden');
					var hideThese = this.options.hideInputs ? this.element.getElements(this.options.hideInputs) : null;
					this.$chain.unshift(function(){
						if (this.hidden){
							this.hiding = false;
							$each(startStyles, function(style, name){
								startStyles[name] = style;
							}, this);
							this.element.style.cssText = this.cssText;
							this.element.setStyle('display', 'none');
							if (hideThese) hideThese.setStyle('visibility', 'visible');
						}
						this.fireEvent('hide', this.element);
						this.callChain();
					}.bind(this));
					if (hideThese) hideThese.setStyle('visibility', 'hidden');
					this.start(zero);
				} else {
					this.callChain.delay(10, this);
					this.fireEvent('complete', this.element);
					this.fireEvent('hide', this.element);
				}
			} else if (this.options.link == 'chain'){
				this.chain(this.dissolve.bind(this));
			} else if (this.options.link == 'cancel' && !this.hiding){
				this.cancel();
				this.dissolve();
			}
		} catch(e){
			this.hiding = false;
			this.element.setStyle('display', 'none');
			this.callChain.delay(10, this);
			this.fireEvent('complete', this.element);
			this.fireEvent('hide', this.element);
		}
		return this;
	},

	reveal: function(){
		try {
			if (!this.showing && !this.hiding){
				if (this.element.getStyle('display') == 'none'){
					this.showing = true;
					this.hiding = this.hidden =  false;
					var startStyles;
					this.cssText = this.element.style.cssText;
					//toggle display, but hide it
					this.element.measure(function(){
						//create the styles for the opened/visible state
						startStyles = this.element.getComputedSize({
							styles: this.options.styles,
							mode: this.options.mode
						});
					}.bind(this));
					$each(startStyles, function(style, name){
						startStyles[name] = style;
					});
					//if we're overridding height/width
					if ($chk(this.options.heightOverride)) startStyles.height = this.options.heightOverride.toInt();
					if ($chk(this.options.widthOverride)) startStyles.width = this.options.widthOverride.toInt();
					if (this.options.transitionOpacity) {
						this.element.setStyle('opacity', 0);
						startStyles.opacity = this.options.opacity;
					}
					//create the zero state for the beginning of the transition
					var zero = {
						height: 0,
						display: $lambda(this.options.display).apply(this)
					};
					$each(startStyles, function(style, name){ zero[name] = 0; });
					//set to zero
					this.element.setStyles($merge(zero, {overflow: 'hidden'}));
					//hide inputs
					var hideThese = this.options.hideInputs ? this.element.getElements(this.options.hideInputs) : null;
					if (hideThese) hideThese.setStyle('visibility', 'hidden');
					//start the effect
					this.start(startStyles);
					this.$chain.unshift(function(){
						this.element.style.cssText = this.cssText;
						this.element.setStyle('display', $lambda(this.options.display).apply(this));
						if (!this.hidden) this.showing = false;
						if (hideThese) hideThese.setStyle('visibility', 'visible');
						this.callChain();
						this.fireEvent('show', this.element);
					}.bind(this));
				} else {
					this.callChain();
					this.fireEvent('complete', this.element);
					this.fireEvent('show', this.element);
				}
			} else if (this.options.link == 'chain'){
				this.chain(this.reveal.bind(this));
			} else if (this.options.link == 'cancel' && !this.showing){
				this.cancel();
				this.reveal();
			}
		} catch(e){
			this.element.setStyles({
				display: $lambda(this.options.display).apply(this),
				visiblity: 'visible',
				opacity: this.options.opacity
			});
			this.showing = false;
			this.callChain.delay(10, this);
			this.fireEvent('complete', this.element);
			this.fireEvent('show', this.element);
		}
		return this;
	},

	toggle: function(){
		if (this.element.getStyle('display') == 'none'){
			this.reveal();
		} else {
			this.dissolve();
		}
		return this;
	},

	cancel: function(){
		this.parent.apply(this, arguments);
		this.element.style.cssText = this.cssText;
		this.hiding = false;
		this.showing = false;
		return this;
	}

});

Element.Properties.reveal = {

	set: function(options){
		var reveal = this.retrieve('reveal');
		if (reveal) reveal.cancel();
		return this.eliminate('reveal').store('reveal:options', options);
	},

	get: function(options){
		if (options || !this.retrieve('reveal')){
			if (options || !this.retrieve('reveal:options')) this.set('reveal', options);
			this.store('reveal', new Fx.Reveal(this, this.retrieve('reveal:options')));
		}
		return this.retrieve('reveal');
	}

};

Element.Properties.dissolve = Element.Properties.reveal;

Element.implement({

	reveal: function(options){
		this.get('reveal', options).reveal();
		return this;
	},

	dissolve: function(options){
		this.get('reveal', options).dissolve();
		return this;
	},

	nix: function(){
		var params = Array.link(arguments, {destroy: Boolean.type, options: Object.type});
		this.get('reveal', params.options).dissolve().chain(function(){
			this[params.destroy ? 'destroy' : 'dispose']();
		}.bind(this));
		return this;
	},

	wink: function(){
		var params = Array.link(arguments, {duration: Number.type, options: Object.type});
		var reveal = this.get('reveal', params.options);
		reveal.reveal().chain(function(){
			(function(){
				reveal.dissolve();
			}).delay(params.duration || 2000);
		});
	}


});

/*
---

script: Fx.Scroll.js

name: Fx.Scroll

description: Effect to smoothly scroll any element, including the window.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Fx
  - Core/Element.Event
  - Core/Element.Dimensions
  - /MooTools.More

provides: [Fx.Scroll]

...
*/

Fx.Scroll = new Class({

	Extends: Fx,

	options: {
		offset: {x: 0, y: 0},
		wheelStops: true
	},

	initialize: function(element, options){
		this.element = this.subject = document.id(element);
		this.parent(options);
		var cancel = this.cancel.bind(this, false);

		if ($type(this.element) != 'element') this.element = document.id(this.element.getDocument().body);

		var stopper = this.element;

		if (this.options.wheelStops){
			this.addEvent('start', function(){
				stopper.addEvent('mousewheel', cancel);
			}, true);
			this.addEvent('complete', function(){
				stopper.removeEvent('mousewheel', cancel);
			}, true);
		}
	},

	set: function(){
		var now = Array.flatten(arguments);
		if (Browser.Engine.gecko) now = [Math.round(now[0]), Math.round(now[1])];
		this.element.scrollTo(now[0] + this.options.offset.x, now[1] + this.options.offset.y);
	},

	compute: function(from, to, delta){
		return [0, 1].map(function(i){
			return Fx.compute(from[i], to[i], delta);
		});
	},

	start: function(x, y){
		if (!this.check(x, y)) return this;
		var scrollSize = this.element.getScrollSize(),
			scroll = this.element.getScroll(), 
			values = {x: x, y: y};
		for (var z in values){
			var max = scrollSize[z];
			if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? values[z] : max;
			else values[z] = scroll[z];
			values[z] += this.options.offset[z];
		}
		return this.parent([scroll.x, scroll.y], [values.x, values.y]);
	},

	toTop: function(){
		return this.start(false, 0);
	},

	toLeft: function(){
		return this.start(0, false);
	},

	toRight: function(){
		return this.start('right', false);
	},

	toBottom: function(){
		return this.start(false, 'bottom');
	},

	toElement: function(el){
		var position = document.id(el).getPosition(this.element);
		return this.start(position.x, position.y);
	},

	scrollIntoView: function(el, axes, offset){
		axes = axes ? $splat(axes) : ['x','y'];
		var to = {};
		el = document.id(el);
		var pos = el.getPosition(this.element);
		var size = el.getSize();
		var scroll = this.element.getScroll();
		var containerSize = this.element.getSize();
		var edge = {
			x: pos.x + size.x,
			y: pos.y + size.y
		};
		['x','y'].each(function(axis) {
			if (axes.contains(axis)) {
				if (edge[axis] > scroll[axis] + containerSize[axis]) to[axis] = edge[axis] - containerSize[axis];
				if (pos[axis] < scroll[axis]) to[axis] = pos[axis];
			}
			if (to[axis] == null) to[axis] = scroll[axis];
			if (offset && offset[axis]) to[axis] = to[axis] + offset[axis];
		}, this);
		if (to.x != scroll.x || to.y != scroll.y) this.start(to.x, to.y);
		return this;
	},

	scrollToCenter: function(el, axes, offset){
		axes = axes ? $splat(axes) : ['x', 'y'];
		el = $(el);
		var to = {},
			pos = el.getPosition(this.element),
			size = el.getSize(),
			scroll = this.element.getScroll(),
			containerSize = this.element.getSize(),
			edge = {
				x: pos.x + size.x,
				y: pos.y + size.y
			};

		['x','y'].each(function(axis){
			if(axes.contains(axis)){
				to[axis] = pos[axis] - (containerSize[axis] - size[axis])/2;
			}
			if(to[axis] == null) to[axis] = scroll[axis];
			if(offset && offset[axis]) to[axis] = to[axis] + offset[axis];
		}, this);
		if (to.x != scroll.x || to.y != scroll.y) this.start(to.x, to.y);
		return this;
	}

});


/*
---

script: Fx.Slide.js

name: Fx.Slide

description: Effect to slide an element in and out of view.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Fx
  - Core/Element.Style
  - /MooTools.More

provides: [Fx.Slide]

...
*/

Fx.Slide = new Class({

	Extends: Fx,

	options: {
		mode: 'vertical',
		wrapper: false,
		hideOverflow: true,
		resetHeight: false
	},

	initialize: function(element, options){
		this.addEvent('complete', function(){
			this.open = (this.wrapper['offset' + this.layout.capitalize()] != 0);
			if (this.open && this.options.resetHeight) this.wrapper.setStyle('height', '');
			if (this.open && Browser.Engine.webkit419) this.element.dispose().inject(this.wrapper);
		}, true);
		this.element = this.subject = document.id(element);
		this.parent(options);
		var wrapper = this.element.retrieve('wrapper');
		var styles = this.element.getStyles('margin', 'position', 'overflow');
		if (this.options.hideOverflow) styles = $extend(styles, {overflow: 'hidden'});
		if (this.options.wrapper) wrapper = document.id(this.options.wrapper).setStyles(styles);
		this.wrapper = wrapper || new Element('div', {
			styles: styles
		}).wraps(this.element);
		this.element.store('wrapper', this.wrapper).setStyle('margin', 0);
		this.now = [];
		this.open = true;
	},

	vertical: function(){
		this.margin = 'margin-top';
		this.layout = 'height';
		this.offset = this.element.offsetHeight;
	},

	horizontal: function(){
		this.margin = 'margin-left';
		this.layout = 'width';
		this.offset = this.element.offsetWidth;
	},

	set: function(now){
		this.element.setStyle(this.margin, now[0]);
		this.wrapper.setStyle(this.layout, now[1]);
		return this;
	},

	compute: function(from, to, delta){
		return [0, 1].map(function(i){
			return Fx.compute(from[i], to[i], delta);
		});
	},

	start: function(how, mode){
		if (!this.check(how, mode)) return this;
		this[mode || this.options.mode]();
		var margin = this.element.getStyle(this.margin).toInt();
		var layout = this.wrapper.getStyle(this.layout).toInt();
		var caseIn = [[margin, layout], [0, this.offset]];
		var caseOut = [[margin, layout], [-this.offset, 0]];
		var start;
		switch (how){
			case 'in': start = caseIn; break;
			case 'out': start = caseOut; break;
			case 'toggle': start = (layout == 0) ? caseIn : caseOut;
		}
		return this.parent(start[0], start[1]);
	},

	slideIn: function(mode){
		return this.start('in', mode);
	},

	slideOut: function(mode){
		return this.start('out', mode);
	},

	hide: function(mode){
		this[mode || this.options.mode]();
		this.open = false;
		return this.set([-this.offset, 0]);
	},

	show: function(mode){
		this[mode || this.options.mode]();
		this.open = true;
		return this.set([0, this.offset]);
	},

	toggle: function(mode){
		return this.start('toggle', mode);
	}

});

Element.Properties.slide = {

	set: function(options){
		var slide = this.retrieve('slide');
		if (slide) slide.cancel();
		return this.eliminate('slide').store('slide:options', $extend({link: 'cancel'}, options));
	},

	get: function(options){
		if (options || !this.retrieve('slide')){
			if (options || !this.retrieve('slide:options')) this.set('slide', options);
			this.store('slide', new Fx.Slide(this, this.retrieve('slide:options')));
		}
		return this.retrieve('slide');
	}

};

Element.implement({

	slide: function(how, mode){
		how = how || 'toggle';
		var slide = this.get('slide'), toggle;
		switch (how){
			case 'hide': slide.hide(mode); break;
			case 'show': slide.show(mode); break;
			case 'toggle':
				var flag = this.retrieve('slide:flag', slide.open);
				slide[flag ? 'slideOut' : 'slideIn'](mode);
				this.store('slide:flag', !flag);
				toggle = true;
			break;
			default: slide.start(how, mode);
		}
		if (!toggle) this.eliminate('slide:flag');
		return this;
	}

});


/*
---

script: Drag.js

name: Drag

description: The base Drag Class. Can be used to drag and resize Elements using mouse events.

license: MIT-style license

authors:
  - Valerio Proietti
  - Tom Occhinno
  - Jan Kassens

requires:
  - Core/Events
  - Core/Options
  - Core/Element.Event
  - Core/Element.Style
  - Core/Element.Dimensions
  - /MooTools.More

provides: [Drag]
...

*/

var Drag = new Class({

	Implements: [Events, Options],

	options: {/*
		onBeforeStart: $empty(thisElement),
		onStart: $empty(thisElement, event),
		onSnap: $empty(thisElement)
		onDrag: $empty(thisElement, event),
		onCancel: $empty(thisElement),
		onComplete: $empty(thisElement, event),*/
		snap: 6,
		unit: 'px',
		grid: false,
		style: true,
		limit: false,
		handle: false,
		invert: false,
		preventDefault: false,
		stopPropagation: false,
		modifiers: {x: 'left', y: 'top'}
	},

	initialize: function(){
		var params = Array.link(arguments, {'options': Object.type, 'element': $defined});
		this.element = document.id(params.element);
		this.document = this.element.getDocument();
		this.setOptions(params.options || {});
		var htype = $type(this.options.handle);
		this.handles = ((htype == 'array' || htype == 'collection') ? $$(this.options.handle) : document.id(this.options.handle)) || this.element;
		this.mouse = {'now': {}, 'pos': {}};
		this.value = {'start': {}, 'now': {}};

		this.selection = (Browser.Engine.trident) ? 'selectstart' : 'mousedown';

		this.bound = {
			start: this.start.bind(this),
			check: this.check.bind(this),
			drag: this.drag.bind(this),
			stop: this.stop.bind(this),
			cancel: this.cancel.bind(this),
			eventStop: $lambda(false)
		};
		this.attach();
	},

	attach: function(){
		this.handles.addEvent('mousedown', this.bound.start);
		return this;
	},

	detach: function(){
		this.handles.removeEvent('mousedown', this.bound.start);
		return this;
	},

	start: function(event){
		if (event.rightClick) return;
		if (this.options.preventDefault) event.preventDefault();
		if (this.options.stopPropagation) event.stopPropagation();
		this.mouse.start = event.page;
		this.fireEvent('beforeStart', this.element);
		var limit = this.options.limit;
		this.limit = {x: [], y: []};
		var styles = this.element.getStyles('left', 'right', 'top', 'bottom');
		this._invert = {
			x: this.options.modifiers.x == 'left' && styles.left == 'auto' &&
			   !isNaN(styles.right.toInt()) && (this.options.modifiers.x = 'right'),
			y: this.options.modifiers.y == 'top' && styles.top == 'auto' &&
			   !isNaN(styles.bottom.toInt()) && (this.options.modifiers.y = 'bottom')
		};

		var z, coordinates;
		for (z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;

			var style = this.element.getStyle(this.options.modifiers[z]);

			// Some browsers (IE and Opera) don't always return pixels.
			if (style && !style.match(/px$/)){
				if (!coordinates) coordinates = this.element.getCoordinates(this.element.getOffsetParent());
				style = coordinates[this.options.modifiers[z]];
			}

			if (this.options.style) this.value.now[z] = (style || 0).toInt();
			else this.value.now[z] = this.element[this.options.modifiers[z]];

			if (this.options.invert) this.value.now[z] *= -1;
			if (this._invert[z]) this.value.now[z] *= -1;

			this.mouse.pos[z] = event.page[z] - this.value.now[z];

			if (limit && limit[z]){
				for (var i = 2; i--; i){
					if ($chk(limit[z][i])) this.limit[z][i] = $lambda(limit[z][i])();
				}
			}
		}

		if ($type(this.options.grid) == 'number') this.options.grid = {x: this.options.grid, y: this.options.grid};
		this.document.addEvents({mousemove: this.bound.check, mouseup: this.bound.cancel});
		this.document.addEvent(this.selection, this.bound.eventStop);
	},

	check: function(event){
		if (this.options.preventDefault) event.preventDefault();
		var distance = Math.round(Math.sqrt(Math.pow(event.page.x - this.mouse.start.x, 2) + Math.pow(event.page.y - this.mouse.start.y, 2)));
		if (distance > this.options.snap){
			this.cancel();
			this.document.addEvents({
				mousemove: this.bound.drag,
				mouseup: this.bound.stop
			});
			this.fireEvent('start', [this.element, event]).fireEvent('snap', this.element);
		}
	},

	drag: function(event){
		if (this.options.preventDefault) event.preventDefault();
		this.mouse.now = event.page;
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			this.value.now[z] = this.mouse.now[z] - this.mouse.pos[z];
			if (this.options.invert) this.value.now[z] *= -1;
			if (this._invert[z]) this.value.now[z] *= -1;
			if (this.options.limit && this.limit[z]){
				if ($chk(this.limit[z][1]) && (this.value.now[z] > this.limit[z][1])){
					this.value.now[z] = this.limit[z][1];
				} else if ($chk(this.limit[z][0]) && (this.value.now[z] < this.limit[z][0])){
					this.value.now[z] = this.limit[z][0];
				}
			}
			if (this.options.grid[z]) this.value.now[z] -= ((this.value.now[z] - (this.limit[z][0]||0)) % this.options.grid[z]);
			if (this.options.style) {
				this.element.setStyle(this.options.modifiers[z], this.value.now[z] + this.options.unit);
			} else {
				this.element[this.options.modifiers[z]] = this.value.now[z];
			}
		}
		this.fireEvent('drag', [this.element, event]);
	},

	cancel: function(event){
		this.document.removeEvent('mousemove', this.bound.check);
		this.document.removeEvent('mouseup', this.bound.cancel);
		if (event){
			this.document.removeEvent(this.selection, this.bound.eventStop);
			this.fireEvent('cancel', this.element);
		}
	},

	stop: function(event){
		this.document.removeEvent(this.selection, this.bound.eventStop);
		this.document.removeEvent('mousemove', this.bound.drag);
		this.document.removeEvent('mouseup', this.bound.stop);
		if (event) this.fireEvent('complete', [this.element, event]);
	}

});

Element.implement({

	makeResizable: function(options){
		var drag = new Drag(this, $merge({modifiers: {x: 'width', y: 'height'}}, options));
		this.store('resizer', drag);
		return drag.addEvent('drag', function(){
			this.fireEvent('resize', drag);
		}.bind(this));
	}

});


/*
---

script: Drag.Move.js

name: Drag.Move

description: A Drag extension that provides support for the constraining of draggables to containers and droppables.

license: MIT-style license

authors:
  - Valerio Proietti
  - Tom Occhinno
  - Jan Kassens
  - Aaron Newton
  - Scott Kyle

requires:
  - Core/Element.Dimensions
  - /Drag

provides: [Drag.Move]

...
*/

Drag.Move = new Class({

	Extends: Drag,

	options: {/*
		onEnter: $empty(thisElement, overed),
		onLeave: $empty(thisElement, overed),
		onDrop: $empty(thisElement, overed, event),*/
		droppables: [],
		container: false,
		precalculate: false,
		includeMargins: true,
		checkDroppables: true
	},

	initialize: function(element, options){
		this.parent(element, options);
		element = this.element;
		
		this.droppables = $$(this.options.droppables);
		this.container = document.id(this.options.container);
		
		if (this.container && $type(this.container) != 'element')
			this.container = document.id(this.container.getDocument().body);

		if (this.options.style){
			if (this.options.modifiers.x == "left" && this.options.modifiers.y == "top"){
				var parentStyles,
					parent = document.id(element.getOffsetParent());
				if (parent) parentStyles = parent.getStyles('border-top-width', 'border-left-width');

				var styles = element.getStyles('left', 'top');
				if (parent && (styles.left == 'auto' || styles.top == 'auto')){
					var parentPosition = element.getPosition(parent);
					parentPosition.x = parentPosition.x - (parentStyles['border-left-width'] ? parentStyles['border-left-width'].toInt() : 0);
					parentPosition.y = parentPosition.y - (parentStyles['border-top-width'] ? parentStyles['border-top-width'].toInt() : 0);
					element.setPosition(parentPosition);
				}
			}
			if (element.getStyle('position') == 'static') element.setStyle('position', 'absolute');
		}

		this.addEvent('start', this.checkDroppables, true);

		this.overed = null;
	},

	start: function(event){
		if (this.container) this.options.limit = this.calculateLimit();
		
		if (this.options.precalculate){
			this.positions = this.droppables.map(function(el){
				return el.getCoordinates();
			});
		}
		
		this.parent(event);
	},
	
	calculateLimit: function(){
		var offsetParent = document.id(this.element.getOffsetParent()) || document.body,
			containerCoordinates = this.container.getCoordinates(offsetParent),
			containerBorder = {},
			elementMargin = {},
			elementBorder = {},
			containerMargin = {},
			offsetParentBorder = {},
			offsetParentPadding = {};

		['top', 'right', 'bottom', 'left'].each(function(pad){
			containerBorder[pad] = this.container.getStyle('border-' + pad).toInt();
			elementBorder[pad] = this.element.getStyle('border-' + pad).toInt();
			elementMargin[pad] = this.element.getStyle('margin-' + pad).toInt();
			containerMargin[pad] = this.container.getStyle('margin-' + pad).toInt();
			offsetParentPadding[pad] = offsetParent.getStyle('padding-' + pad).toInt();
			offsetParentBorder[pad] = offsetParent.getStyle('border-' + pad).toInt();
		}, this);

		var width = this.element.offsetWidth + elementMargin.left + elementMargin.right,
			height = this.element.offsetHeight + elementMargin.top + elementMargin.bottom,
			left = 0,
			top = 0,
			right = containerCoordinates.right - containerBorder.right - width,
			bottom = containerCoordinates.bottom - containerBorder.bottom - height;

		if (this.options.includeMargins){
			left += elementMargin.left;
			top += elementMargin.top;
		} else {
			right += elementMargin.right;
			bottom += elementMargin.bottom;
		}
		
		if (this.element.getStyle('position') == 'relative'){
			var coords = this.element.getCoordinates(offsetParent);
			coords.left -= this.element.getStyle('left').toInt();
			coords.top -= this.element.getStyle('top').toInt();
			
			left += containerBorder.left - coords.left;
			top += containerBorder.top - coords.top;
			right += elementMargin.left - coords.left;
			bottom += elementMargin.top - coords.top;
			
			if (this.container != offsetParent){
				left += containerMargin.left + offsetParentPadding.left;
				top += (Browser.Engine.trident4 ? 0 : containerMargin.top) + offsetParentPadding.top;
			}
		} else {
			left -= elementMargin.left;
			top -= elementMargin.top;
			if (this.container == offsetParent){
				right -= containerBorder.left;
				bottom -= containerBorder.top;
			} else {
				left += containerCoordinates.left + containerBorder.left - offsetParentBorder.left;
				top += containerCoordinates.top + containerBorder.top - offsetParentBorder.top;
				right -= offsetParentBorder.left;
				bottom -= offsetParentBorder.top;
			}
		}
		
		return {
			x: [left, right],
			y: [top, bottom]
		};
	},

	checkAgainst: function(el, i){
		el = (this.positions) ? this.positions[i] : el.getCoordinates();
		var now = this.mouse.now;
		return (now.x > el.left && now.x < el.right && now.y < el.bottom && now.y > el.top);
	},

	checkDroppables: function(){
		var overed = this.droppables.filter(this.checkAgainst, this).getLast();
		if (this.overed != overed){
			if (this.overed) this.fireEvent('leave', [this.element, this.overed]);
			if (overed) this.fireEvent('enter', [this.element, overed]);
			this.overed = overed;
		}
	},

	drag: function(event){
		this.parent(event);
		if (this.options.checkDroppables && this.droppables.length) this.checkDroppables();
	},

	stop: function(event){
		this.checkDroppables();
		this.fireEvent('drop', [this.element, this.overed, event]);
		this.overed = null;
		return this.parent(event);
	}

});

Element.implement({

	makeDraggable: function(options){
		var drag = new Drag.Move(this, options);
		this.store('dragger', drag);
		return drag;
	}

});


/*
---

script: Sortables.js

name: Sortables

description: Class for creating a drag and drop sorting interface for lists of items.

license: MIT-style license

authors:
  - Tom Occhino

requires:
  - /Drag.Move

provides: [Sortables]

...
*/

var Sortables = new Class({

	Implements: [Events, Options],

	options: {/*
		onSort: $empty(element, clone),
		onStart: $empty(element, clone),
		onComplete: $empty(element),*/
		snap: 4,
		opacity: 1,
		clone: false,
		revert: false,
		handle: false,
		constrain: false,
		preventDefault: false
	},

	initialize: function(lists, options){
		this.setOptions(options);
		this.elements = [];
		this.lists = [];
		this.idle = true;

		this.addLists($$(document.id(lists) || lists));
		if (!this.options.clone) this.options.revert = false;
		if (this.options.revert) this.effect = new Fx.Morph(null, $merge({duration: 250, link: 'cancel'}, this.options.revert));
	},

	attach: function(){
		this.addLists(this.lists);
		return this;
	},

	detach: function(){
		this.lists = this.removeLists(this.lists);
		return this;
	},

	addItems: function(){
		Array.flatten(arguments).each(function(element){
			this.elements.push(element);
			var start = element.retrieve('sortables:start', this.start.bindWithEvent(this, element));
			(this.options.handle ? element.getElement(this.options.handle) || element : element).addEvent('mousedown', start);
		}, this);
		return this;
	},

	addLists: function(){
		Array.flatten(arguments).each(function(list){
			this.lists.push(list);
			this.addItems(list.getChildren());
		}, this);
		return this;
	},

	removeItems: function(){
		return $$(Array.flatten(arguments).map(function(element){
			this.elements.erase(element);
			var start = element.retrieve('sortables:start');
			(this.options.handle ? element.getElement(this.options.handle) || element : element).removeEvent('mousedown', start);
			this.getDroppables();//+
			return element;
		}, this));
	},

	removeLists: function(){
		return $$(Array.flatten(arguments).map(function(list){
			this.lists.erase(list);
			this.removeItems(list.getChildren());
			this.getDroppables();//+
			return list;
		}, this));
	},

	getClone: function(event, element){
		if (!this.options.clone) return new Element(element.tagName).inject(document.body);
		if ($type(this.options.clone) == 'function') return this.options.clone.call(this, event, element, this.list);
		var clone = element.clone(true).setStyles({
			margin: '0px',
			position: 'absolute',
			visibility: 'hidden',
			'width': element.getStyle('width')
		});
		//prevent the duplicated radio inputs from unchecking the real one
		if (clone.get('html').test('radio')) {
			clone.getElements('input[type=radio]').each(function(input, i) {
				input.set('name', 'clone_' + i);
				if (input.get('checked')) element.getElements('input[type=radio]')[i].set('checked', true);
			});
		}
		
		return clone.inject(this.list).setPosition(element.getPosition(element.getOffsetParent()));
	},

	getDroppables: function(){
		if (!this.list) return;//+
		var droppables = this.list.getChildren();
		if (!this.options.constrain) droppables = this.lists.concat(droppables).erase(this.list);
		return droppables.erase(this.clone).erase(this.element);
	},

	insert: function(dragging, element){
//		var where = 'inside';//-
		var where = null;//+
		if (this.lists.contains(element)){
      		where = 'inside';//+
			this.list = element;
			this.drag.droppables = this.getDroppables();
		} else {
//			where = this.element.getAllPrevious().contains(element) ? 'before' : 'after';//-
			if (this.element.getAllPrevious().contains(element)) where = 'before';//+
			if (this.element.getAllNext().contains(element)) where = 'after';//+
		}
		if (!where) return;//+
		this.element.inject(element, where);
		this.fireEvent('sort', [this.element, this.clone]);
	},

	start: function(event, element){
		if (
			!this.idle ||
			event.rightClick ||
			['button', 'input'].contains(document.id(event.target).get('tag'))
		) return;

		this.idle = false;
		this.element = element;
		this.opacity = element.get('opacity');
		this.list = element.getParent();
		this.clone = this.getClone(event, element);

		this.drag = new Drag.Move(this.clone, {
			preventDefault: this.options.preventDefault,
			snap: this.options.snap,
			container: this.options.constrain && this.element.getParent(),
			droppables: this.getDroppables(),
			onSnap: function(){
				event.stop();
				this.clone.setStyle('visibility', 'visible');
				this.element.set('opacity', this.options.opacity || 0);
				this.fireEvent('start', [this.element, this.clone]);
			}.bind(this),
			onEnter: this.insert.bind(this),
			onCancel: this.reset.bind(this),
			onComplete: this.end.bind(this)
		});

		this.clone.inject(this.element, 'before');
		this.drag.start(event);
	},

	end: function(){
		this.drag.detach();
		this.element.set('opacity', this.opacity);
		if (this.effect){
			var dim = this.element.getStyles('width', 'height');
			var pos = this.clone.computePosition(this.element.getPosition(this.clone.getOffsetParent()));
			this.effect.element = this.clone;
			this.effect.start({
				top: pos.top,
				left: pos.left,
				width: dim.width,
				height: dim.height,
				opacity: 0.25
			}).chain(this.reset.bind(this));
		} else {
			this.reset();
		}
	},

	reset: function(){
		this.idle = true;
		this.clone.destroy();
		this.fireEvent('complete', this.element);
	},

	serialize: function(){
		var params = Array.link(arguments, {modifier: Function.type, index: $defined});
		var serial = this.lists.map(function(list){
			return list.getChildren().map(params.modifier || function(element){
				return element.get('id');
			}, this);
		}, this);

		var index = params.index;
		if (this.lists.length == 1) index = 0;
		return $chk(index) && index >= 0 && index < this.lists.length ? serial[index] : serial;
	}

});


/*
---

script: Request.Periodical.js

name: Request.Periodical

description: Requests the same URL to pull data from a server but increases the intervals if no data is returned to reduce the load

license: MIT-style license

authors:
  - Christoph Pojer

requires:
  - Core/Request
  - /MooTools.More

provides: [Request.Periodical]

...
*/

Request.implement({

	options: {
		initialDelay: 5000,
		delay: 5000,
		limit: 60000
	},

	startTimer: function(data){
		var fn = function(){
			if (!this.running) this.send({data: data});
		};
		this.timer = fn.delay(this.options.initialDelay, this);
		this.lastDelay = this.options.initialDelay;
		this.completeCheck = function(response){
			$clear(this.timer);
			this.lastDelay = (response) ? this.options.delay : (this.lastDelay + this.options.delay).min(this.options.limit);
			this.timer = fn.delay(this.lastDelay, this);
		};
		return this.addEvent('complete', this.completeCheck);
	},

	stopTimer: function(){
		$clear(this.timer);
		return this.removeEvent('complete', this.completeCheck);
	}

});

/*
---

script: Assets.js

name: Assets

description: Provides methods to dynamically load JavaScript, CSS, and Image files into the document.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Element.Event
  - /MooTools.More

provides: [Assets]

...
*/

var Asset = {

	javascript: function(source, properties){
		properties = $extend({
			onload: $empty,
			document: document,
			check: $lambda(true)
		}, properties);
		
		if (properties.onLoad) {
			properties.onload = properties.onLoad;
			delete properties.onLoad;
		}
		var script = new Element('script', {src: source, type: 'text/javascript'});

		var load = properties.onload.bind(script), 
			check = properties.check, 
			doc = properties.document;
		delete properties.onload;
		delete properties.check;
		delete properties.document;

		script.addEvents({
			load: load,
			readystatechange: function(){
				if (['loaded', 'complete'].contains(this.readyState)) load();
			}
		}).set(properties);

		if (Browser.Engine.webkit419) var checker = (function(){
			if (!$try(check)) return;
			$clear(checker);
			load();
		}).periodical(50);

		return script.inject(doc.head);
	},

	css: function(source, properties){
		properties = properties || {};
		var onload = properties.onload || properties.onLoad;
		if (onload) {
			properties.events = properties.events || {};
			properties.events.load = onload;
			delete properties.onload;
			delete properties.onLoad;
		}
		return new Element('link', $merge({
			rel: 'stylesheet',
			media: 'screen',
			type: 'text/css',
			href: source
		}, properties)).inject(document.head);
	},

	image: function(source, properties){
		properties = $merge({
			onload: $empty,
			onabort: $empty,
			onerror: $empty
		}, properties);
		var image = new Image();
		var element = document.id(image) || new Element('img');
		['load', 'abort', 'error'].each(function(name){
			var type = 'on' + name;
			var cap = name.capitalize();
			if (properties['on' + cap]) {
				properties[type] = properties['on' + cap];
				delete properties['on' + cap];
			}
			var event = properties[type];
			delete properties[type];
			image[type] = function(){
				if (!image) return;
				if (!element.parentNode){
					element.width = image.width;
					element.height = image.height;
				}
				image = image.onload = image.onabort = image.onerror = null;
				event.delay(1, element, element);
				element.fireEvent(name, element, 1);
			};
		});
		image.src = element.src = source;
		if (image && image.complete) image.onload.delay(1);
		return element.set(properties);
	},

	images: function(sources, options){
		options = $merge({
			onComplete: $empty,
			onProgress: $empty,
			onError: $empty,
			properties: {}
		}, options);
		sources = $splat(sources);
		var images = [];
		var counter = 0;
		return new Elements(sources.map(function(source, index){
			return Asset.image(source, $extend(options.properties, {
				onload: function(){
					options.onProgress.call(this, counter, index);
					counter++;
					if (counter == sources.length) options.onComplete();
				},
				onerror: function(){
					options.onError.call(this, counter, index);
					counter++;
					if (counter == sources.length) options.onComplete();
				}
			}));
		}));
	}

};

/*
---

script: Color.js

name: Color

description: Class for creating and manipulating colors in JavaScript. Supports HSB -> RGB Conversions and vice versa.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Array
  - Core/String
  - Core/Number
  - Core/Hash
  - Core/Function
  - Core/$util

provides: [Color]

...
*/

var Color = new Native({

	initialize: function(color, type){
		if (arguments.length >= 3){
			type = 'rgb'; color = Array.slice(arguments, 0, 3);
		} else if (typeof color == 'string'){
			if (color.match(/rgb/)) color = color.rgbToHex().hexToRgb(true);
			else if (color.match(/hsb/)) color = color.hsbToRgb();
			else color = color.hexToRgb(true);
		}
		type = type || 'rgb';
		switch (type){
			case 'hsb':
				var old = color;
				color = color.hsbToRgb();
				color.hsb = old;
			break;
			case 'hex': color = color.hexToRgb(true); break;
		}
		color.rgb = color.slice(0, 3);
		color.hsb = color.hsb || color.rgbToHsb();
		color.hex = color.rgbToHex();
		return $extend(color, this);
	}

});

Color.implement({

	mix: function(){
		var colors = Array.slice(arguments);
		var alpha = ($type(colors.getLast()) == 'number') ? colors.pop() : 50;
		var rgb = this.slice();
		colors.each(function(color){
			color = new Color(color);
			for (var i = 0; i < 3; i++) rgb[i] = Math.round((rgb[i] / 100 * (100 - alpha)) + (color[i] / 100 * alpha));
		});
		return new Color(rgb, 'rgb');
	},

	invert: function(){
		return new Color(this.map(function(value){
			return 255 - value;
		}));
	},

	setHue: function(value){
		return new Color([value, this.hsb[1], this.hsb[2]], 'hsb');
	},

	setSaturation: function(percent){
		return new Color([this.hsb[0], percent, this.hsb[2]], 'hsb');
	},

	setBrightness: function(percent){
		return new Color([this.hsb[0], this.hsb[1], percent], 'hsb');
	}

});

var $RGB = function(r, g, b){
	return new Color([r, g, b], 'rgb');
};

var $HSB = function(h, s, b){
	return new Color([h, s, b], 'hsb');
};

var $HEX = function(hex){
	return new Color(hex, 'hex');
};

Array.implement({

	rgbToHsb: function(){
		var red = this[0],
				green = this[1],
				blue = this[2],
				hue = 0;
		var max = Math.max(red, green, blue),
				min = Math.min(red, green, blue);
		var delta = max - min;
		var brightness = max / 255,
				saturation = (max != 0) ? delta / max : 0;
		if(saturation != 0) {
			var rr = (max - red) / delta;
			var gr = (max - green) / delta;
			var br = (max - blue) / delta;
			if (red == max) hue = br - gr;
			else if (green == max) hue = 2 + rr - br;
			else hue = 4 + gr - rr;
			hue /= 6;
			if (hue < 0) hue++;
		}
		return [Math.round(hue * 360), Math.round(saturation * 100), Math.round(brightness * 100)];
	},

	hsbToRgb: function(){
		var br = Math.round(this[2] / 100 * 255);
		if (this[1] == 0){
			return [br, br, br];
		} else {
			var hue = this[0] % 360;
			var f = hue % 60;
			var p = Math.round((this[2] * (100 - this[1])) / 10000 * 255);
			var q = Math.round((this[2] * (6000 - this[1] * f)) / 600000 * 255);
			var t = Math.round((this[2] * (6000 - this[1] * (60 - f))) / 600000 * 255);
			switch (Math.floor(hue / 60)){
				case 0: return [br, t, p];
				case 1: return [q, br, p];
				case 2: return [p, br, t];
				case 3: return [p, q, br];
				case 4: return [t, p, br];
				case 5: return [br, p, q];
			}
		}
		return false;
	}

});

String.implement({

	rgbToHsb: function(){
		var rgb = this.match(/\d{1,3}/g);
		return (rgb) ? rgb.rgbToHsb() : null;
	},

	hsbToRgb: function(){
		var hsb = this.match(/\d{1,3}/g);
		return (hsb) ? hsb.hsbToRgb() : null;
	}

});


/*
---

script: Group.js

name: Group

description: Class for monitoring collections of events

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Events
  - /MooTools.More

provides: [Group]

...
*/

var Group = new Class({

	initialize: function(){
		this.instances = Array.flatten(arguments);
		this.events = {};
		this.checker = {};
	},

	addEvent: function(type, fn){
		this.checker[type] = this.checker[type] || {};
		this.events[type] = this.events[type] || [];
		if (this.events[type].contains(fn)) return false;
		else this.events[type].push(fn);
		this.instances.each(function(instance, i){
			instance.addEvent(type, this.check.bind(this, [type, instance, i]));
		}, this);
		return this;
	},

	check: function(type, instance, i){
		this.checker[type][i] = true;
		var every = this.instances.every(function(current, j){
			return this.checker[type][j] || false;
		}, this);
		if (!every) return;
		this.checker[type] = {};
		this.events[type].each(function(event){
			event.call(this, this.instances, instance);
		}, this);
	}

});


/*
---

script: Hash.Cookie.js

name: Hash.Cookie

description: Class for creating, reading, and deleting Cookies in JSON format.

license: MIT-style license

authors:
  - Valerio Proietti
  - Aaron Newton

requires:
  - Core/Cookie
  - Core/JSON
  - /MooTools.More

provides: [Hash.Cookie]

...
*/

Hash.Cookie = new Class({

	Extends: Cookie,

	options: {
		autoSave: true
	},

	initialize: function(name, options){
		this.parent(name, options);
		this.load();
	},

	save: function(){
		var value = JSON.encode(this.hash);
		if (!value || value.length > 4096) return false; //cookie would be truncated!
		if (value == '{}') this.dispose();
		else this.write(value);
		return true;
	},

	load: function(){
		this.hash = new Hash(JSON.decode(this.read(), true));
		return this;
	}

});

Hash.each(Hash.prototype, function(method, name){
	if (typeof method == 'function') Hash.Cookie.implement(name, function(){
		var value = method.apply(this.hash, arguments);
		if (this.options.autoSave) this.save();
		return value;
	});
});

/*
---

script: IframeShim.js

name: IframeShim

description: Defines IframeShim, a class for obscuring select lists and flash objects in IE.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Element.Event
  - Core/Element.Style
  - Core/Options
  - Core/Events
  - /Element.Position
  - /Class.Occlude

provides: [IframeShim]

...
*/

var IframeShim = new Class({

	Implements: [Options, Events, Class.Occlude],

	options: {
		className: 'iframeShim',
		src: 'javascript:false;document.write("");',
		display: false,
		zIndex: null,
		margin: 0,
		offset: {x: 0, y: 0},
		browsers: (Browser.Engine.trident4 || (Browser.Engine.gecko && !Browser.Engine.gecko19 && Browser.Platform.mac))
	},

	property: 'IframeShim',

	initialize: function(element, options){
		this.element = document.id(element);
		if (this.occlude()) return this.occluded;
		this.setOptions(options);
		this.makeShim();
		return this;
	},

	makeShim: function(){
		if(this.options.browsers){
			var zIndex = this.element.getStyle('zIndex').toInt();

			if (!zIndex){
				zIndex = 1;
				var pos = this.element.getStyle('position');
				if (pos == 'static' || !pos) this.element.setStyle('position', 'relative');
				this.element.setStyle('zIndex', zIndex);
			}
			zIndex = ($chk(this.options.zIndex) && zIndex > this.options.zIndex) ? this.options.zIndex : zIndex - 1;
			if (zIndex < 0) zIndex = 1;
			this.shim = new Element('iframe', {
				src: this.options.src,
				scrolling: 'no',
				frameborder: 0,
				styles: {
					zIndex: zIndex,
					position: 'absolute',
					border: 'none',
					filter: 'progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)'
				},
				'class': this.options.className
			}).store('IframeShim', this);
			var inject = (function(){
				this.shim.inject(this.element, 'after');
				this[this.options.display ? 'show' : 'hide']();
				this.fireEvent('inject');
			}).bind(this);
			if (!IframeShim.ready) window.addEvent('load', inject);
			else inject();
		} else {
			this.position = this.hide = this.show = this.dispose = $lambda(this);
		}
	},

	position: function(){
		if (!IframeShim.ready || !this.shim) return this;
		var size = this.element.measure(function(){ 
			return this.getSize(); 
		});
		if (this.options.margin != undefined){
			size.x = size.x - (this.options.margin * 2);
			size.y = size.y - (this.options.margin * 2);
			this.options.offset.x += this.options.margin;
			this.options.offset.y += this.options.margin;
		}
		this.shim.set({width: size.x, height: size.y}).position({
			relativeTo: this.element,
			offset: this.options.offset
		});
		return this;
	},

	hide: function(){
		if (this.shim) this.shim.setStyle('display', 'none');
		return this;
	},

	show: function(){
		if (this.shim) this.shim.setStyle('display', 'block');
		return this.position();
	},

	dispose: function(){
		if (this.shim) this.shim.dispose();
		return this;
	},

	destroy: function(){
		if (this.shim) this.shim.destroy();
		return this;
	}

});

window.addEvent('load', function(){
	IframeShim.ready = true;
});


/*
---

script: Mask.js

name: Mask

description: Creates a mask element to cover another.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Options
  - Core/Events
  - Core/Element.Event
  - /Class.Binds
  - /Element.Position
  - /IframeShim

provides: [Mask]

...
*/

var Mask = new Class({

	Implements: [Options, Events],

	Binds: ['position'],

	options: {
		// onShow: $empty,
		// onHide: $empty,
		// onDestroy: $empty,
		// onClick: $empty,
		//inject: {
		//  where: 'after',
		//  target: null,
		//},
		// hideOnClick: false,
		// id: null,
		// destroyOnHide: false,
		style: {},
		'class': 'mask',
		maskMargins: false,
		useIframeShim: true,
		iframeShimOptions: {}
	},

	initialize: function(target, options){
		this.target = document.id(target) || document.id(document.body);
		this.target.store('Mask', this);
		this.setOptions(options);
		this.render();
		this.inject();
	},
	
	render: function() {
		this.element = new Element('div', {
			'class': this.options['class'],
			id: this.options.id || 'mask-' + $time(),
			styles: $merge(this.options.style, {
				display: 'none'
			}),
			events: {
				click: function(){
					this.fireEvent('click');
					if (this.options.hideOnClick) this.hide();
				}.bind(this)
			}
		});
		this.hidden = true;
	},

	toElement: function(){
		return this.element;
	},

	inject: function(target, where){
		where = where || this.options.inject ? this.options.inject.where : '' || this.target == document.body ? 'inside' : 'after';
		target = target || this.options.inject ? this.options.inject.target : '' || this.target;
		this.element.inject(target, where);
		if (this.options.useIframeShim) {
			this.shim = new IframeShim(this.element, this.options.iframeShimOptions);
			this.addEvents({
				show: this.shim.show.bind(this.shim),
				hide: this.shim.hide.bind(this.shim),
				destroy: this.shim.destroy.bind(this.shim)
			});
		}
	},

	position: function(){
		this.resize(this.options.width, this.options.height);
		this.element.position({
			relativeTo: this.target,
			position: 'topLeft',
			ignoreMargins: !this.options.maskMargins,
			ignoreScroll: this.target == document.body
		});
		return this;
	},

	resize: function(x, y){
		var opt = {
			styles: ['padding', 'border']
		};
		if (this.options.maskMargins) opt.styles.push('margin');
		var dim = this.target.getComputedSize(opt);
		if (this.target == document.body) {
			var win = window.getScrollSize();
			if (dim.totalHeight < win.y) dim.totalHeight = win.y;
			if (dim.totalWidth < win.x) dim.totalWidth = win.x;
		}
		this.element.setStyles({
			width: $pick(x, dim.totalWidth, dim.x),
			height: $pick(y, dim.totalHeight, dim.y)
		});
		return this;
	},

	show: function(){
		if (!this.hidden) return this;
		window.addEvent('resize', this.position);
		this.position();
		this.showMask.apply(this, arguments);
		return this;
	},

	showMask: function(){
		this.element.setStyle('display', 'block');
		this.hidden = false;
		this.fireEvent('show');
	},

	hide: function(){
		if (this.hidden) return this;
		window.removeEvent('resize', this.position);
		this.hideMask.apply(this, arguments);
		if (this.options.destroyOnHide) return this.destroy();
		return this;
	},

	hideMask: function(){
		this.element.setStyle('display', 'none');
		this.hidden = true;
		this.fireEvent('hide');
	},

	toggle: function(){
		this[this.hidden ? 'show' : 'hide']();
	},

	destroy: function(){
		this.hide();
		this.element.destroy();
		this.fireEvent('destroy');
		this.target.eliminate('mask');
	}

});

Element.Properties.mask = {

	set: function(options){
		var mask = this.retrieve('mask');
		return this.eliminate('mask').store('mask:options', options);
	},

	get: function(options){
		if (options || !this.retrieve('mask')){
			if (this.retrieve('mask')) this.retrieve('mask').destroy();
			if (options || !this.retrieve('mask:options')) this.set('mask', options);
			this.store('mask', new Mask(this, this.retrieve('mask:options')));
		}
		return this.retrieve('mask');
	}

};

Element.implement({

	mask: function(options){
		this.get('mask', options).show();
		return this;
	},

	unmask: function(){
		this.get('mask').hide();
		return this;
	}

});

/*
---

script: Scroller.js

name: Scroller

description: Class which scrolls the contents of any Element (including the window) when the mouse reaches the Element's boundaries.

license: MIT-style license

authors:
  - Valerio Proietti

requires:
  - Core/Events
  - Core/Options
  - Core/Element.Event
  - Core/Element.Dimensions

provides: [Scroller]

...
*/

var Scroller = new Class({

	Implements: [Events, Options],

	options: {
		area: 20,
		velocity: 1,
		onChange: function(x, y){
			this.element.scrollTo(x, y);
		},
		fps: 50
	},

	initialize: function(element, options){
		this.setOptions(options);
		this.element = document.id(element);
		this.docBody = document.id(this.element.getDocument().body);
		this.listener = ($type(this.element) != 'element') ?  this.docBody : this.element;
		this.timer = null;
		this.bound = {
			attach: this.attach.bind(this),
			detach: this.detach.bind(this),
			getCoords: this.getCoords.bind(this)
		};
	},

	start: function(){
		this.listener.addEvents({
			mouseenter: this.bound.attach,
			mouseleave: this.bound.detach
		});
	},

	stop: function(){
		this.listener.removeEvents({
			mouseenter: this.bound.attach,
			mouseleave: this.bound.detach
		});
		this.detach();
		this.timer = $clear(this.timer);
	},

	attach: function(){
		this.listener.addEvent('mousemove', this.bound.getCoords);
	},

	detach: function(){
		this.listener.removeEvent('mousemove', this.bound.getCoords);
		this.timer = $clear(this.timer);
	},

	getCoords: function(event){
		this.page = (this.listener.get('tag') == 'body') ? event.client : event.page;
		if (!this.timer) this.timer = this.scroll.periodical(Math.round(1000 / this.options.fps), this);
	},

	scroll: function(){
		var size = this.element.getSize(), 
			scroll = this.element.getScroll(), 
			pos = this.element != this.docBody ? this.element.getOffsets() : {x: 0, y:0}, 
			scrollSize = this.element.getScrollSize(), 
			change = {x: 0, y: 0},
			top = this.options.area.top || this.options.area,
		  bottom = this.options.area.bottom || this.options.area;
		for (var z in this.page){
			if (this.page[z] < (top + pos[z]) && scroll[z] != 0) {
				change[z] = (this.page[z] - top - pos[z]) * this.options.velocity;
			} else if (this.page[z] + bottom > (size[z] + pos[z]) && scroll[z] + size[z] != scrollSize[z]) {
				change[z] = (this.page[z] - size[z] + bottom - pos[z]) * this.options.velocity;
			}
			change[z] = change[z].round();
		}
		if (change.y || change.x) this.fireEvent('change', [scroll.x + change.x, scroll.y + change.y]);
	}

});


/*
---

script: Spinner.js

name: Spinner

description: Adds a semi-transparent overlay over a dom element with a spinnin ajax icon.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Fx.Tween
  - Core/Request
  - /Class.refactor
  - /Mask

provides: [Spinner]

...
*/

var Spinner = new Class({

	Extends: Mask,

	options: {
		/*message: false,*/
		'class':'spinner',
		containerPosition: {},
		content: {
			'class':'spinner-content'
		},
		messageContainer: {
			'class':'spinner-msg'
		},
		img: {
			'class':'spinner-img'
		},
		fxOptions: {
			link: 'chain'
		}
	},

	initialize: function(){
		this.parent.apply(this, arguments);
		this.target.store('spinner', this);

		//add this to events for when noFx is true; parent methods handle hide/show
		var deactivate = function(){ this.active = false; }.bind(this);
		this.addEvents({
			hide: deactivate,
			show: deactivate
		});
	},

	render: function(){
		this.parent();
		this.element.set('id', this.options.id || 'spinner-'+$time());
		this.content = document.id(this.options.content) || new Element('div', this.options.content);
		this.content.inject(this.element);
		if (this.options.message) {
			this.msg = document.id(this.options.message) || new Element('p', this.options.messageContainer).appendText(this.options.message);
			this.msg.inject(this.content);
		}
		if (this.options.img) {
			this.img = document.id(this.options.img) || new Element('div', this.options.img);
			this.img.inject(this.content);
		}
		this.element.set('tween', this.options.fxOptions);
	},

	show: function(noFx){
		if (this.active) return this.chain(this.show.bind(this));
		if (!this.hidden) {
			this.callChain.delay(20, this);
			return this;
		}
		this.active = true;
		return this.parent(noFx);
	},

	showMask: function(noFx){
		var pos = function(){
			this.content.position($merge({
				relativeTo: this.element
			}, this.options.containerPosition));
		}.bind(this);
		if (noFx) {
			this.parent();
			pos();
		} else {
			this.element.setStyles({
				display: 'block',
				opacity: 0
			}).tween('opacity', this.options.style.opacity || 0.9);
			pos();
			this.hidden = false;
			this.fireEvent('show');
			this.callChain();
		}
	},

	hide: function(noFx){
		if (this.active) return this.chain(this.hide.bind(this));
		if (this.hidden) {
			this.callChain.delay(20, this);
			return this;
		}
		this.active = true;
		return this.parent(noFx);
	},

	hideMask: function(noFx){
		if (noFx) return this.parent();
		this.element.tween('opacity', 0).get('tween').chain(function(){
			this.element.setStyle('display', 'none');
			this.hidden = true;
			this.fireEvent('hide');
			this.callChain();
		}.bind(this));
	},

	destroy: function(){
		this.content.destroy();
		this.parent();
		this.target.eliminate('spinner');
	}

});

Spinner.implement(new Chain);

Request = Class.refactor(Request, {
	
	options: {
		useSpinner: false,
		spinnerOptions: {},
		spinnerTarget: false
	},
	
	initialize: function(options){
		this._send = this.send;
		this.send = function(options){
			var spinner = this.getSpinner();
			if (spinner) spinner.chain(this._send.bind(this, options)).show();
			else this._send(options);
			return this;
		};
		this.previous(options);
	},
	
	getSpinner: function(){
		if (!this.spinner) {
			var update = document.id(this.options.spinnerTarget) || document.id(this.options.update);
			if (this.options.useSpinner && update) {
				this.spinner = update.get('spinner', this.options.spinnerOptions);
				['onComplete', 'onException', 'onCancel'].each(function(event){
					this.addEvent(event, this.spinner.hide.bind(this.spinner));
				}, this);
			}
		}
		return this.spinner;
	}
	
});

Element.Properties.spinner = {

	set: function(options){
		var spinner = this.retrieve('spinner');
		return this.eliminate('spinner').store('spinner:options', options);
	},

	get: function(options){
		if (options || !this.retrieve('spinner')){
			if (this.retrieve('spinner')) this.retrieve('spinner').destroy();
			if (options || !this.retrieve('spinner:options')) this.set('spinner', options);
			new Spinner(this, this.retrieve('spinner:options'));
		}
		return this.retrieve('spinner');
	}

};

Element.implement({

	spin: function(options){
		this.get('spinner', options).show();
		return this;
	},

	unspin: function(){
		var opt = Array.link(arguments, {options: Object.type, callback: Function.type});
		this.get('spinner', opt.options).hide(opt.callback);
		return this;
	}

});