// MooTools: the javascript framework.
// Load this file's selection again by visiting: http://mootools.net/more/e66be0ddbaf315950a2678c38f680d2e 
// Or build this file again with packager using: packager build More/Fx.Accordion More/Fx.Move More/Fx.Slide More/Assets More/Spinner
/*
---

script: More.js

name: More

description: MooTools More

license: MIT-style license

authors:
  - Guillermo Rauch
  - Thomas Aylott
  - Scott Kyle
  - Arian Stolwijk
  - Tim Wienk
  - Christoph Pojer
  - Aaron Newton
  - Jacob Thornton

requires:
  - Core/MooTools

provides: [MooTools.More]

...
*/

MooTools.More = {
	'version': '1.3.2.1',
	'build': 'e586bcd2496e9b22acfde32e12f84d49ce09e59d'
};


/*
---

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: function(toggler, section){},
		onBackground: function(toggler, section){},*/
		fixedHeight: false,
		fixedWidth: false,
		display: 0,
		show: false,
		height: true,
		width: false,
		opacity: true,
		alwaysHide: false,
		trigger: 'click',
		initialDisplayFx: true,
		resetHeight: true
	},

	initialize: function(){
		var defined = function(obj){
			return obj != null;
		};

		var params = Array.link(arguments, {
			'container': Type.isElement, //deprecated
			'options': Type.isObject,
			'togglers': defined,
			'elements': defined
		});
		this.parent(params.elements, params.options);

		var options = this.options,
			togglers = this.togglers = $$(params.togglers);

		this.previous = -1;
		this.internalChain = new Chain();

		if (options.alwaysHide) this.options.link = 'chain';

		if (options.show || this.options.show === 0){
			options.display = false;
			this.previous = options.show;
		}

		if (options.start){
			options.display = false;
			options.show = false;
		}

		var effects = this.effects = {};

		if (options.opacity) effects.opacity = 'fullOpacity';
		if (options.width) effects.width = options.fixedWidth ? 'fullWidth' : 'offsetWidth';
		if (options.height) effects.height = options.fixedHeight ? 'fullHeight' : 'scrollHeight';

		for (var i = 0, l = togglers.length; i < l; i++) this.addSection(togglers[i], this.elements[i]);

		this.elements.each(function(el, i){
			if (options.show === i){
				this.fireEvent('active', [togglers[i], el]);
			} else {
				for (var fx in effects) el.setStyle(fx, 0);
			}
		}, this);

		if (options.display || options.display === 0 || options.initialDisplayFx === false){
			this.display(options.display, options.initialDisplayFx);
		}

		if (options.fixedHeight !== false) options.resetHeight = false;
		this.addEvent('complete', this.internalChain.callChain.bind(this.internalChain));
	},

	addSection: function(toggler, element){
		toggler = document.id(toggler);
		element = document.id(element);
		this.togglers.include(toggler);
		this.elements.include(element);

		var togglers = this.togglers,
			options = this.options,
			test = togglers.contains(toggler),
			idx = togglers.indexOf(toggler),
			displayer = this.display.pass(idx, this);

		toggler.store('accordion:display', displayer)
			.addEvent(options.trigger, displayer);

		if (options.height) element.setStyles({'padding-top': 0, 'border-top': 'none', 'padding-bottom': 0, 'border-bottom': 'none'});
		if (options.width) element.setStyles({'padding-left': 0, 'border-left': 'none', 'padding-right': 0, 'border-right': 'none'});

		element.fullOpacity = 1;
		if (options.fixedWidth) element.fullWidth = options.fixedWidth;
		if (options.fixedHeight) element.fullHeight = 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 togglers = this.togglers,
			idx = togglers.indexOf(toggler),
			element = this.elements[idx];

		var remover = function(){
			togglers.erase(toggler);
			this.elements.erase(element);
			this.detach(toggler);
		}.bind(this);

		if (this.now == idx || displayIndex != null){
			this.display(displayIndex != null ? 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;

		var obj = {},
			elements = this.elements,
			options = this.options,
			effects = this.effects;

		if (useFx == null) useFx = true;
		if (typeOf(index) == 'element') index = elements.indexOf(index);
		if (index == this.previous && !options.alwaysHide) return this;

		if (options.resetHeight){
			var prev = elements[this.previous];
			if (prev && !this.selfHidden){
				for (var fx in effects) prev.setStyle(fx, prev[effects[fx]]);
			}
		}

		if ((this.timer && options.link == 'chain') || (index === this.previous && !options.alwaysHide)) return this;

		this.previous = index;
		this.selfHidden = false;

		elements.each(function(el, i){
			obj[i] = {};
			var hide;
			if (i != index){
				hide = true;
			} else if (options.alwaysHide && ((el.offsetHeight > 0 && options.height) || el.offsetWidth > 0 && options.width)){
				hide = true;
				this.selfHidden = true;
			}
			this.fireEvent(hide ? 'background' : 'active', [this.togglers[i], el]);
			for (var fx in effects) obj[i][fx] = hide ? 0 : el[effects[fx]];
			if (!useFx && !hide && options.resetHeight) obj[i].height = 'auto';
		}, this);

		this.internalChain.clearChain();
		this.internalChain.chain(function(){
			if (options.resetHeight && !this.selfHidden){
				var el = elements[index];
				if (el) el.setStyle('height', 'auto');
			}
		}.bind(this));

		return useFx ? this.start(obj) : this.set(obj).internalChain.callChain();
	}

});

/*<1.2compat>*/
/*
	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': Type.isElement});
		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 = pos != null ? 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);
	}

});
/*</1.2compat>*/


/*
---

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]

...
*/

(function(){

var getStylesList = function(styles, planes){
	var list = [];
	Object.each(planes, function(directions){
		Object.each(directions, function(edge){
			styles.each(function(style){
				list.push(style + '-' + edge + (style == 'border' ? '-width' : ''));
			});
		});
	});
	return list;
};

var calculateEdgeSize = function(edge, styles){
	var total = 0;
	Object.each(styles, function(value, style){
		if (style.test(edge)) total = total + value.toInt();
	});
	return total;
};

var isVisible = function(el){
	return !!(!el || el.offsetHeight || el.offsetWidth);
};


Element.implement({

	measure: function(fn){
		if (isVisible(this)) return fn.call(this);
		var parent = this.getParent(),
			toMeasure = [];
		while (!isVisible(parent) && parent != document.body){
			toMeasure.push(parent.expose());
			parent = parent.getParent();
		}
		var restore = this.expose(),
			result = fn.call(this);
		restore();
		toMeasure.each(function(restore){
			restore();
		});
		return result;
	},

	expose: function(){
		if (this.getStyle('display') != 'none') return function(){};
		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 = Object.merge({computeSize: false}, options);
		var dim = {x: 0, y: 0};

		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){}
		}

		return Object.append(dim, (dim.x || dim.x === 0) ? {
				width: dim.x,
				height: dim.y
			} : {
				x: dim.width,
				y: dim.height
			}
		);
	},

	getComputedSize: function(options){
		//<1.2compat>
		//legacy support for my stupid spelling error
		if (options && options.plains) options.planes = options.plains;
		//</1.2compat>

		options = Object.merge({
			styles: ['padding','border'],
			planes: {
				height: ['top','bottom'],
				width: ['left','right']
			},
			mode: 'both'
		}, options);

		var styles = {},
			size = {width: 0, height: 0},
			dimensions;

		if (options.mode == 'vertical'){
			delete size.width;
			delete options.planes.width;
		} else if (options.mode == 'horizontal'){
			delete size.height;
			delete options.planes.height;
		}

		getStylesList(options.styles, options.planes).each(function(style){
			styles[style] = this.getStyle(style).toInt();
		}, this);

		Object.each(options.planes, function(edges, plane){

			var capitalized = plane.capitalize(),
				style = this.getStyle(plane);

			if (style == 'auto' && !dimensions) dimensions = this.getDimensions();

			style = styles[plane] = (style == 'auto') ? dimensions[plane] : style.toInt();
			size['total' + capitalized] = style;

			edges.each(function(edge){
				var edgesize = calculateEdgeSize(edge, styles);
				size['computed' + edge.capitalize()] = edgesize;
				size['total' + capitalized] += edgesize;
			});

		}, this);

		return Object.append(size, styles);
	}

});

})();


/*
---

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
  - Jacob Thornton

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

provides: [Element.Position]

...
*/

(function(original){

var local = Element.Position = {

	options: {/*
		edge: false,
		returnPos: false,
		minimum: {x: 0, y: 0},
		maximum: {x: 0, y: 0},
		relFixedPosition: false,
		ignoreMargins: false,
		ignoreScroll: false,
		allowNegative: false,*/
		relativeTo: document.body,
		position: {
			x: 'center', //left, center, right
			y: 'center' //top, center, bottom
		},
		offset: {x: 0, y: 0}
	},

	getOptions: function(element, options){
		options = Object.merge({}, local.options, options);
		local.setPositionOption(options);
		local.setEdgeOption(options);
		local.setOffsetOption(element, options);
		local.setDimensionsOption(element, options);
		return options;
	},

	setPositionOption: function(options){
		options.position = local.getCoordinateFromValue(options.position);
	},

	setEdgeOption: function(options){
		var edgeOption = local.getCoordinateFromValue(options.edge);
		options.edge = edgeOption ? edgeOption :
			(options.position.x == 'center' && options.position.y == 'center') ? {x: 'center', y: 'center'} :
			{x: 'left', y: 'top'};
	},

	setOffsetOption: function(element, options){
		var parentOffset = {x: 0, y: 0},
			offsetParent = element.measure(function(){
				return document.id(this.getOffsetParent());
			}),
			parentScroll = offsetParent.getScroll();

		if (!offsetParent || offsetParent == element.getDocument().body) return;
		parentOffset = offsetParent.measure(function(){
			var position = this.getPosition();
			if (this.getStyle('position') == 'fixed'){
				var scroll = window.getScroll();
				position.x += scroll.x;
				position.y += scroll.y;
			}
			return position;
		});

		options.offset = {
			parentPositioned: offsetParent != document.id(options.relativeTo),
			x: options.offset.x - parentOffset.x + parentScroll.x,
			y: options.offset.y - parentOffset.y + parentScroll.y
		};
	},

	setDimensionsOption: function(element, options){
		options.dimensions = element.getDimensions({
			computeSize: true,
			styles: ['padding', 'border', 'margin']
		});
	},

	getPosition: function(element, options){
		var position = {};
		options = local.getOptions(element, options);
		var relativeTo = document.id(options.relativeTo) || document.body;

		local.setPositionCoordinates(options, position, relativeTo);
		if (options.edge) local.toEdge(position, options);

		var offset = options.offset;
		position.left = ((position.x >= 0 || offset.parentPositioned || options.allowNegative) ? position.x : 0).toInt();
		position.top = ((position.y >= 0 || offset.parentPositioned || options.allowNegative) ? position.y : 0).toInt();

		local.toMinMax(position, options);

		if (options.relFixedPosition || relativeTo.getStyle('position') == 'fixed') local.toRelFixedPosition(relativeTo, position);
		if (options.ignoreScroll) local.toIgnoreScroll(relativeTo, position);
		if (options.ignoreMargins) local.toIgnoreMargins(position, options);

		position.left = Math.ceil(position.left);
		position.top = Math.ceil(position.top);
		delete position.x;
		delete position.y;

		return position;
	},

	setPositionCoordinates: function(options, position, relativeTo){
		var offsetY = options.offset.y,
			offsetX = options.offset.x,
			calc = (relativeTo == document.body) ? window.getScroll() : relativeTo.getPosition(),
			top = calc.y,
			left = calc.x,
			winSize = window.getSize();

		switch(options.position.x){
			case 'left': position.x = left + offsetX; break;
			case 'right': position.x = left + offsetX + relativeTo.offsetWidth; break;
			default: position.x = left + ((relativeTo == document.body ? winSize.x : relativeTo.offsetWidth) / 2) + offsetX; break;
		}

		switch(options.position.y){
			case 'top': position.y = top + offsetY; break;
			case 'bottom': position.y = top + offsetY + relativeTo.offsetHeight; break;
			default: position.y = top + ((relativeTo == document.body ? winSize.y : relativeTo.offsetHeight) / 2) + offsetY; break;
		}
	},

	toMinMax: function(position, options){
		var xy = {left: 'x', top: 'y'}, value;
		['minimum', 'maximum'].each(function(minmax){
			['left', 'top'].each(function(lr){
				value = options[minmax] ? options[minmax][xy[lr]] : null;
				if (value != null && ((minmax == 'minimum') ? position[lr] < value : position[lr] > value)) position[lr] = value;
			});
		});
	},

	toRelFixedPosition: function(relativeTo, position){
		var winScroll = window.getScroll();
		position.top += winScroll.y;
		position.left += winScroll.x;
	},

	toIgnoreScroll: function(relativeTo, position){
		var relScroll = relativeTo.getScroll();
		position.top -= relScroll.y;
		position.left -= relScroll.x;
	},

	toIgnoreMargins: function(position, options){
		position.left += options.edge.x == 'right'
			? options.dimensions['margin-right']
			: (options.edge.x != 'center'
				? -options.dimensions['margin-left']
				: -options.dimensions['margin-left'] + ((options.dimensions['margin-right'] + options.dimensions['margin-left']) / 2));

		position.top += options.edge.y == 'bottom'
			? options.dimensions['margin-bottom']
			: (options.edge.y != 'center'
				? -options.dimensions['margin-top']
				: -options.dimensions['margin-top'] + ((options.dimensions['margin-bottom'] + options.dimensions['margin-top']) / 2));
	},

	toEdge: function(position, options){
		var edgeOffset = {},
			dimensions = options.dimensions,
			edge = options.edge;

		switch(edge.x){
			case 'left': edgeOffset.x = 0; break;
			case 'right': edgeOffset.x = -dimensions.x - dimensions.computedRight - dimensions.computedLeft; break;
			// center
			default: edgeOffset.x = -(Math.round(dimensions.totalWidth / 2)); break;
		}

		switch(edge.y){
			case 'top': edgeOffset.y = 0; break;
			case 'bottom': edgeOffset.y = -dimensions.y - dimensions.computedTop - dimensions.computedBottom; break;
			// center
			default: edgeOffset.y = -(Math.round(dimensions.totalHeight / 2)); break;
		}

		position.x += edgeOffset.x;
		position.y += edgeOffset.y;
	},

	getCoordinateFromValue: function(option){
		if (typeOf(option) != 'string') return option;
		option = option.toLowerCase();

		return {
			x: option.test('left') ? 'left'
				: (option.test('right') ? 'right' : 'center'),
			y: option.test(/upper|top/) ? 'top'
				: (option.test('bottom') ? 'bottom' : 'center')
		};
	}

};

Element.implement({

	position: function(options){
		if (options && (options.x != null || options.y != null)) {
			return (original ? original.apply(this, arguments) : this);
		}
		var position = this.setStyle('position', 'absolute').calculatePosition(options);
		return (options && options.returnPos) ? position : this.setStyles(position);
	},

	calculatePosition: function(options){
		return local.getPosition(this, options);
	}

});

})(Element.prototype.position);


/*
---

script: Fx.Move.js

name: Fx.Move

description: Defines Fx.Move, a class that works with Element.Position.js to transition an element from one location to another.

license: MIT-style license

authors:
  - Aaron Newton

requires:
  - Core/Fx.Morph
  - /Element.Position

provides: [Fx.Move]

...
*/

Fx.Move = new Class({

	Extends: Fx.Morph,

	options: {
		relativeTo: document.body,
		position: 'center',
		edge: false,
		offset: {x: 0, y: 0}
	},

	start: function(destination){
		var element = this.element,
			topLeft = element.getStyles('top', 'left');
		if (topLeft.top == 'auto' || topLeft.left == 'auto'){
			element.setPosition(element.getPosition(element.getOffsetParent()));
		}
		return this.parent(element.position(Object.merge({}, this.options, destination, {returnPos: true})));
	}

});

Element.Properties.move = {

	set: function(options){
		this.get('move').cancel().setOptions(options);
		return this;
	},

	get: function(){
		var move = this.retrieve('move');
		if (!move){
			move = new Fx.Move(this, {link: 'cancel'});
			this.store('move', move);
		}
		return move;
	}

};

Element.implement({

	move: function(options){
		this.get('move').start(options);
		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){
		element = this.element = this.subject = document.id(element);
		this.parent(options);
		options = this.options;

		var wrapper = element.retrieve('wrapper'),
			styles = element.getStyles('margin', 'position', 'overflow');

		if (options.hideOverflow) styles = Object.append(styles, {overflow: 'hidden'});
		if (options.wrapper) wrapper = document.id(options.wrapper).setStyles(styles);

		if (!wrapper) wrapper = new Element('div', {
			styles: styles
		}).wraps(element);

		element.store('wrapper', wrapper).setStyle('margin', 0);
		if (element.getStyle('overflow') == 'visible') element.setStyle('overflow', 'hidden');

		this.now = [];
		this.open = true;
		this.wrapper = wrapper;

		this.addEvent('complete', function(){
			this.open = (wrapper['offset' + this.layout.capitalize()] != 0);
			if (this.open && this.options.resetHeight) wrapper.setStyle('height', '');
		}, 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(),
			layout = this.wrapper.getStyle(this.layout).toInt(),
			caseIn = [[margin, layout], [0, this.offset]],
			caseOut = [[margin, layout], [-this.offset, 0]],
			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){
		this.get('slide').cancel().setOptions(options);
		return this;
	},

	get: function(){
		var slide = this.retrieve('slide');
		if (!slide){
			slide = new Fx.Slide(this, {link: 'cancel'});
			this.store('slide', slide);
		}
		return 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: 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){
		if (!properties) properties = {};

		var script = new Element('script', {src: source, type: 'text/javascript'}),
			doc = properties.document || document,
			loaded = 0,
			loadEvent = properties.onload || properties.onLoad;

		var load = loadEvent ? function(){ // make sure we only call the event once
			if (++loaded == 1) loadEvent.call(this);
		} : function(){};

		delete properties.onload;
		delete properties.onLoad;
		delete properties.document;

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

	css: function(source, properties){
		if (!properties) properties = {};

		var link = new Element('link', {
			rel: 'stylesheet',
			media: 'screen',
			type: 'text/css',
			href: source
		});

		var load = properties.onload || properties.onLoad,
			doc = properties.document || document;

		delete properties.onload;
		delete properties.onLoad;
		delete properties.document;

		if (load) link.addEvent('load', load);
		return link.set(properties).inject(doc.head);
	},

	image: function(source, properties){
		if (!properties) properties = {};

		var image = new Image(),
			element = document.id(image) || new Element('img');

		['load', 'abort', 'error'].each(function(name){
			var type = 'on' + name,
				cap = 'on' + name.capitalize(),
				event = properties[type] || properties[cap] || function(){};

			delete properties[cap];
			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){
		sources = Array.from(sources);

		var fn = function(){},
			counter = 0;

		options = Object.merge({
			onComplete: fn,
			onProgress: fn,
			onError: fn,
			properties: {}
		}, options);

		return new Elements(sources.map(function(source, index){
			return Asset.image(source, Object.append(options.properties, {
				onload: function(){
					counter++;
					options.onProgress.call(this, counter, index, source);
					if (counter == sources.length) options.onComplete();
				},
				onerror: function(){
					counter++;
					options.onError.call(this, counter, index, source);
					if (counter == sources.length) options.onComplete();
				}
			}));
		}));
	}

};


/*
---

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){

	Object.each(refactors, function(item, name){
		var origin = original.prototype[name];
		origin = (origin && origin.$origin) || origin || function(){};
		original.implement(name, (typeof item == 'function') ? function(){
			var old = this.previous;
			this.previous = origin;
			var value = item.apply(this, arguments);
			this.previous = old;
			return value;
		} : 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){
	if (!this.prototype.initialize) this.implement('initialize', function(){});
	return Array.from(binds).concat(this.prototype.Binds || []);
};

Class.Mutators.initialize = function(initialize){
	return function(){
		Array.from(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 && !this.occluded)
			return (this.occluded = instance);

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

});


/*
---

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.ie6 || (Browser.firefox && Browser.version < 3 && 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 = ((this.options.zIndex != null || this.options.zIndex === 0) && 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 = Function.from(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: function(){},
		onHide: function(){},
		onDestroy: function(){},
		onClick: function(event){},
		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-' + String.uniqueID(),
			styles: Object.merge({}, this.options.style, {
				display: 'none'
			}),
			events: {
				click: function(event){
					this.fireEvent('click', event);
					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){
			this.element.setStyles({width: 0, height: 0});
			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: Array.pick([x, dim.totalWidth, dim.x]),
			height: Array.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');
		if (mask) mask.destroy();
		return this.eliminate('mask').store('mask:options', options);
	},

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

};

Element.implement({

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

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

});


/*
---

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,

	Implements: Chain,

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

	initialize: function(target, options){
		this.target = document.id(target) || document.id(document.body);
		this.target.store('spinner', this);
		this.setOptions(options);
		this.render();
		this.inject();

		// 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-' + String.uniqueID());

		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(Object.merge({
				relativeTo: this.element
			}, this.options.containerPosition));
		}.bind(this);

		if (noFx){
			this.parent();
			pos();
		} else {
			if (!this.options.style.opacity) this.options.style.opacity = this.element.getStyle('opacity').toFloat();
			this.element.setStyles({
				display: 'block',
				opacity: 0
			}).tween('opacity', this.options.style.opacity);
			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');
	}

});

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.pass(options, this)).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){
				update.set('spinner', this.options.spinnerOptions);
				var spinner = this.spinner = update.get('spinner');
				['complete', 'exception', 'cancel'].each(function(event){
					this.addEvent(event, spinner.hide.bind(spinner));
				}, this);
			}
		}
		return this.spinner;
	}

});

Element.Properties.spinner = {

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

	get: function(){
		var spinner = this.retrieve('spinner');
		if (!spinner){
			spinner = new Spinner(this, this.retrieve('spinner:options'));
			this.store('spinner', spinner);
		}
		return spinner;
	}

};

Element.implement({

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

	unspin: function(){
		this.get('spinner').hide();
		return this;
	}

});