//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.

MooTools.More = {
	'version': '1.2.3.1'
};

/*
Script: Log.js
	Provides basic logging functionality for plugins to implement.

	License:
		MIT-style license.

	Authors:
		Guillermo Rauch
*/

var Log = new Class({
	
	log: function(){
		Log.logger.call(this, arguments);
	}
	
});

Log.logged = [];

Log.logger = function(){
	if(window.console && console.log) console.log.apply(console, arguments);
	else Log.logged.push(arguments);
};

/*
Script: Class.Refactor.js
	Extends a class onto itself with new property, preserving any items attached to the class's namespace.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

Class.refactor = function(original, refactors){

	$each(refactors, function(item, name){
		var origin = original.prototype[name];
		if (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.Occlude.js
	Prevents a class from being applied to a DOM element twice.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

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

});

/*
Script: Element.Forms.js
	Extends the Element native object to include methods useful in managing inputs.

	License:
		MIT-style license.

	Authors:
		Aaron Newton

*/

Element.implement({

	tidy: function(){
		this.set('value', this.get('value').tidy());
	},

	getTextInRange: function(start, end){
		return this.get('value').substring(start, end);
	},

	getSelectedText: function(){
		if (this.setSelectionRange) return this.getTextInRange(this.getSelectionStart(), this.getSelectionEnd());
		return document.selection.createRange().text;
	},

	getSelectedRange: function() {
		if ($defined(this.selectionStart)) return {start: this.selectionStart, end: this.selectionEnd};
		var pos = {start: 0, end: 0};
		var range = this.getDocument().selection.createRange();
		if (!range || range.parentElement() != this) return pos;
		var dup = range.duplicate();
		if (this.type == 'text') {
			pos.start = 0 - dup.moveStart('character', -100000);
			pos.end = pos.start + range.text.length;
		} else {
			var value = this.get('value');
			var offset = value.length - value.match(/[\n\r]*$/)[0].length;
			dup.moveToElementText(this);
			dup.setEndPoint('StartToEnd', range);
			pos.end = offset - dup.text.length;
			dup.setEndPoint('StartToStart', range);
			pos.start = offset - dup.text.length;
		}
		return pos;
	},

	getSelectionStart: function(){
		return this.getSelectedRange().start;
	},

	getSelectionEnd: function(){
		return this.getSelectedRange().end;
	},

	setCaretPosition: function(pos){
		if (pos == 'end') pos = this.get('value').length;
		this.selectRange(pos, pos);
		return this;
	},

	getCaretPosition: function(){
		return this.getSelectedRange().start;
	},

	selectRange: function(start, end){
		if (this.setSelectionRange) {
			this.focus();
			this.setSelectionRange(start, end);
		} else {
			var value = this.get('value');
			var diff = value.substr(start, end - start).replace(/\r/g, '').length;
			start = value.substr(0, start).replace(/\r/g, '').length;
			var range = this.createTextRange();
			range.collapse(true);
			range.moveEnd('character', start + diff);
			range.moveStart('character', start);
			range.select();
		}
		return this;
	},

	insertAtCursor: function(value, select){
		var pos = this.getSelectedRange();
		var text = this.get('value');
		this.set('value', text.substring(0, pos.start) + value + text.substring(pos.end, text.length));
		if ($pick(select, true)) this.selectRange(pos.start, pos.start + value.length);
		else this.setCaretPosition(pos.start + value.length);
		return this;
	},

	insertAroundCursor: function(options, select){
		options = $extend({
			before: '',
			defaultMiddle: '',
			after: ''
		}, options);
		var value = this.getSelectedText() || options.defaultMiddle;
		var pos = this.getSelectedRange();
		var text = this.get('value');
		if (pos.start == pos.end){
			this.set('value', text.substring(0, pos.start) + options.before + value + options.after + text.substring(pos.end, text.length));
			this.selectRange(pos.start + options.before.length, pos.end + options.before.length + value.length);
		} else {
			var current = text.substring(pos.start, pos.end);
			this.set('value', text.substring(0, pos.start) + options.before + current + options.after + text.substring(pos.end, text.length));
			var selStart = pos.start + options.before.length;
			if ($pick(select, true)) this.selectRange(selStart, selStart + current.length);
			else this.setCaretPosition(selStart + text.length);
		}
		return this;
	}

});

/*
Script: Element.Measure.js
	Extends the Element native object to include methods useful in measuring dimensions.

	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

*/

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(),
			toMeasure = [], 
			restorers = [];
		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();
		};
		if (this.getStyle('display') == 'none'){
			dim = this.measure(function(){
				return getSize(this, options);
			});
		} else {
			try { //safari sometimes crashes here, so catch it
				dim = getSize(this, options);
			}catch(e){}
		}
		return $chk(dim.x) ? $extend(dim, {width: dim.x, height: dim.y}) : $extend(dim, {x: dim.width, y: dim.height});
	},

	getComputedSize: function(options){
		options = $merge({
			styles: ['padding','border'],
			plains: {
				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.plains.width;
				break;
			case 'horizontal':
				delete size.height;
				delete options.plains.height;
				break;
		}
		var getStyles = [];
		//this function might be useful in other places; perhaps it should be outside this function?
		$each(options.plains, function(plain, key){
			plain.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.plains, function(plain, key){ //keys: width, height, plains: ['left', 'right'], ['top','bottom']
			var capitalized = key.capitalize();
			size['total' + capitalized] = 0;
			size['computed' + capitalized] = 0;
			plain.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
	Extends the Element native object to include methods useful positioning elements relative to others.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

(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 = $merge({
			relativeTo: document.body,
			position: {
				x: 'center', //left, center, right
				y: 'center' //top, center, bottom
			},
			edge: false,
			offset: {x: 0, y: 0},
			returnPos: false,
			relFixedPosition: false,
			ignoreMargins: false,
			allowNegative: false
		}, options);
		//compute the offset of the parent positioned element if this element is in one
		var parentOffset = {x: 0, y: 0};
		var parentPositioned = false;
		/* dollar around getOffsetParent should not be necessary, but as it does not return
		 * a mootools extended element in IE, an error occurs on the call to expose. See:
		 * http://mootools.lighthouseapp.com/projects/2706/tickets/333-element-getoffsetparent-inconsistency-between-ie-and-other-browsers */
		var offsetParent = this.measure(function(){
			return document.id(this.getOffsetParent());
		});
		if (offsetParent && offsetParent != this.getDocument().body){
			parentOffset = offsetParent.measure(function(){
				return this.getPosition();
			});
			parentPositioned = true;
			options.offset.x = options.offset.x - parentOffset.x;
			options.offset.y = options.offset.y - parentOffset.y;
		}
		//upperRight, bottomRight, centerRight, upperLeft, bottomLeft, centerLeft
		//topRight, topLeft, centerTop, centerBottom, center
		var fixValue = function(option){
			if ($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;
		var calc = rel == document.body ? window.getScroll() : rel.getPosition();
		var top = calc.y;
		var left = calc.x;

		if (Browser.Engine.trident){
			var scrolls = rel.getScrolls();
			top += scrolls.y;
			left += scrolls.x;
		}

		var dim = this.getDimensions({computeSize: true, styles:['padding', 'border','margin']});
		if (options.ignoreMargins){
			options.offset.x = options.offset.x - dim['margin-left'];
			options.offset.y = options.offset.y - dim['margin-top'];
		}
		var pos = {};
		var prefY = options.offset.y;
		var prefX = options.offset.x;
		var 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.x/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.y/2);
					break;
			}
			pos.x = pos.x + edgeOffset.x;
			pos.y = 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()
		};
		if (rel.getStyle('position') == 'fixed' || options.relFixedPosition){
			var winScroll = window.getScroll();
			pos.top = pos.top.toInt() + winScroll.y;
			pos.left = pos.left.toInt() + winScroll.x;
		}

		if (options.returnPos) return pos;
		else this.setStyles(pos);
		return this;
	}

});

})();

/*
Script: Element.Shortcuts.js
	Extends the Element native object to include some shortcut methods.

	License:
		MIT-style license.

	Authors:
		Aaron Newton

*/

Element.implement({

	isDisplayed: function(){
		return this.getStyle('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
			if ('none' != this.getStyle('display')) d = this.getStyle('display');
		} catch(e){}

		return this.store('originalDisplay', d || 'block').setStyle('display', 'none');
	},

	show: function(display){
		return this.setStyle('display', display || this.retrieve('originalDisplay') || 'block');
	},

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

});


/*
Script: Fx.Elements.js
	Effect to change any number of CSS properties of any number of Elements.

	License:
		MIT-style license.

	Authors:
		Valerio Proietti
*/

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){
			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){
			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.Move.js
	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

*/

Fx.Move = new Class({

	Extends: Fx.Morph,

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

	start: function(destination){
		return this.parent(this.element.position($merge(this.options, destination, {returnPos: true})));
	}

});

Element.Properties.move = {

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

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

};

Element.implement({

	move: function(options){
		this.get('move').start(options);
		return this;
	}

});


/*
Script: Fx.Reveal.js
	Defines Fx.Reveal, a class that shows and hides elements with a transition.

	License:
		MIT-style license.

	Authors:
		Aaron Newton

*/

Fx.Reveal = new Class({

	Extends: Fx.Morph,

	options: {/*	  
		onShow: $empty(thisElement),
		onHide: $empty(thisElement),
		onComplete: $empty(thisElement),
		heightOverride: null,
		widthOverride: null, */
		styles: ['padding', 'border', 'margin'],
		transitionOpacity: !Browser.Engine.trident4,
		mode: 'vertical',
		display: 'block',
		hideInputs: Browser.Engine.trident ? 'select, input, textarea, object, embed' : false
	},

	dissolve: function(){
		try {
			if (!this.hiding && !this.showing){
				if (this.element.getStyle('display') != 'none'){
					this.hiding = true;
					this.showing = false;
					this.hidden = true;
					var startStyles = this.element.getComputedSize({
						styles: this.options.styles,
						mode: this.options.mode
					});
					var setToAuto = (this.element.style.height === ''||this.element.style.height == 'auto');
					this.element.setStyle('display', 'block');
					if (this.options.transitionOpacity) startStyles.opacity = 1;
					var zero = {};
					$each(startStyles, function(style, name){
						zero[name] = [style, 0];
					}, this);
					var overflowBefore = this.element.getStyle('overflow');
					this.element.setStyle('overflow', 'hidden');
					var hideThese = this.options.hideInputs ? this.element.getElements(this.options.hideInputs) : null;
					this.$chain.unshift(function(){
						if (this.hidden){
							this.hiding = false;
							$each(startStyles, function(style, name){
								startStyles[name] = style;
							}, this);
							this.element.setStyles($merge({display: 'none', overflow: overflowBefore}, startStyles));
							if (setToAuto){
								if (['vertical', 'both'].contains(this.options.mode)) this.element.style.height = '';
								if (['width', 'both'].contains(this.options.mode)) this.element.style.width = '';
							}
							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.element.getStyle('visiblity') == 'hidden' ||
					 this.element.getStyle('opacity') == 0){
					this.showing = true;
					this.hiding = false;
					this.hidden = false;
					var setToAuto, startStyles;
					//toggle display, but hide it
					this.element.measure(function(){
						setToAuto = (this.element.style.height === '' || this.element.style.height == 'auto');
						//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 = 1;
					}
					//create the zero state for the beginning of the transition
					var zero = {
						height: 0,
						display: this.options.display
					};
					$each(startStyles, function(style, name){ zero[name] = 0; });
					var overflowBefore = this.element.getStyle('overflow');
					//set to zero
					this.element.setStyles($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.setStyle('overflow', overflowBefore);
						if (!this.options.heightOverride && setToAuto){
							if (['vertical', 'both'].contains(this.options.mode)) this.element.style.height = '';
							if (['width', 'both'].contains(this.options.mode)) this.element.style.width = '';
						}
						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: this.options.display,
				visiblity: 'visible',
				opacity: 1
			});
			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.element.getStyle('visiblity') == 'hidden' ||
			 this.element.getStyle('opacity') == 0){
			this.reveal();
		} else {
			this.dissolve();
		}
		return this;
	}

});

Element.Properties.reveal = {

	set: function(options){
		var reveal = this.retrieve('reveal');
		if (reveal) reveal.cancel();
		return this.eliminate('reveal').store('reveal:options', $extend({link: 'cancel'}, 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
	Effect to smoothly scroll any element, including the window.

	License:
		MIT-style license.

	Authors:
		Valerio Proietti
*/

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);
		this.element.scrollTo(now[0], now[1]);
	},

	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 offsetSize = this.element.getSize(), scrollSize = this.element.getScrollSize();
		var scroll = this.element.getScroll(), values = {x: x, y: y};
		for (var z in values){
			var max = scrollSize[z] - offsetSize[z];
			if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? values[z].limit(0, max) : 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;
	}

});


/*
Script: Fx.Slide.js
	Effect to slide an element in and out of view.

	License:
		MIT-style license.

	Authors:
		Valerio Proietti
*/

Fx.Slide = new Class({

	Extends: Fx,

	options: {
		mode: 'vertical'
	},

	initialize: function(element, options){
		this.addEvent('complete', function(){
			this.open = (this.wrapper['offset' + this.layout.capitalize()] != 0);
			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');
		this.wrapper = wrapper || new Element('div', {
			styles: $extend(this.element.getStyles('margin', 'position'), {overflow: 'hidden'})
		}).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: Fx.Sort.js
	Defines Fx.Sort, a class that reorders lists with a transition.

	License:
		MIT-style license.

	Authors:
		Aaron Newton

*/

Fx.Sort = new Class({

	Extends: Fx.Elements,

	options: {
		mode: 'vertical'
	},

	initialize: function(elements, options){
		this.parent(elements, options);
		this.elements.each(function(el){
			if (el.getStyle('position') == 'static') el.setStyle('position', 'relative');
		});
		this.setDefaultOrder();
	},

	setDefaultOrder: function(){
		this.currentOrder = this.elements.map(function(el, index){
			return index;
		});
	},

	sort: function(newOrder){
		if ($type(newOrder) != 'array') return false;
		var top = 0;
		var left = 0;
		var zero = {};
		var vert = this.options.mode == 'vertical';
		var current = this.elements.map(function(el, index){
			var size = el.getComputedSize({styles: ['border', 'padding', 'margin']});
			var val;
			if (vert){
				val = {
					top: top,
					margin: size['margin-top'],
					height: size.totalHeight
				};
				top += val.height - size['margin-top'];
			} else {
				val = {
					left: left,
					margin: size['margin-left'],
					width: size.totalWidth
				};
				left += val.width;
			}
			var plain = vert ? 'top' : 'left';
			zero[index] = {};
			var start = el.getStyle(plain).toInt();
			zero[index][plain] = start || 0;
			return val;
		}, this);
		this.set(zero);
		newOrder = newOrder.map(function(i){ return i.toInt(); });
		if (newOrder.length != this.elements.length){
			this.currentOrder.each(function(index){
				if (!newOrder.contains(index)) newOrder.push(index);
			});
			if (newOrder.length > this.elements.length)
				newOrder.splice(this.elements.length-1, newOrder.length - this.elements.length);
		}
		top = 0;
		left = 0;
		var margin = 0;
		var next = {};
		newOrder.each(function(item, index){
			var newPos = {};
			if (vert){
				newPos.top = top - current[item].top - margin;
				top += current[item].height;
			} else {
				newPos.left = left - current[item].left;
				left += current[item].width;
			}
			margin = margin + current[item].margin;
			next[item]=newPos;
		}, this);
		var mapped = {};
		$A(newOrder).sort().each(function(index){
			mapped[index] = next[index];
		});
		this.start(mapped);
		this.currentOrder = newOrder;
		return this;
	},

	rearrangeDOM: function(newOrder){
		newOrder = newOrder || this.currentOrder;
		var parent = this.elements[0].getParent();
		var rearranged = [];
		this.elements.setStyle('opacity', 0);
		//move each element and store the new default order
		newOrder.each(function(index){
			rearranged.push(this.elements[index].inject(parent).setStyles({
				top: 0,
				left: 0
			}));
		}, this);
		this.elements.setStyle('opacity', 1);
		this.elements = $$(rearranged);
		this.setDefaultOrder();
		return this;
	},

	getDefaultOrder: function(){
		return this.elements.map(function(el, index){
			return index;
		});
	},

	forward: function(){
		return this.sort(this.getDefaultOrder());
	},

	backward: function(){
		return this.sort(this.getDefaultOrder().reverse());
	},

	reverse: function(){
		return this.sort(this.currentOrder.reverse());
	},

	sortByElements: function(elements){
		return this.sort(elements.map(function(el){
			return this.elements.indexOf(el);
		}, this));
	},

	swap: function(one, two){
		if ($type(one) == 'element') one = this.elements.indexOf(one);
		if ($type(two) == 'element') two = this.elements.indexOf(two);
		
		var newOrder = $A(this.currentOrder);
		newOrder[this.currentOrder.indexOf(one)] = two;
		newOrder[this.currentOrder.indexOf(two)] = one;
		this.sort(newOrder);
	}

});

/*
Script: Drag.js
	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
*/

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,
		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 (this.options.preventDefault) event.preventDefault();
		this.mouse.start = event.page;
		this.fireEvent('beforeStart', this.element);
		var limit = this.options.limit;
		this.limit = {x: [], y: []};
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			if (this.options.style) this.value.now[z] = this.element.getStyle(this.options.modifiers[z]).toInt();
			else this.value.now[z] = this.element[this.options.modifiers[z]];
			if (this.options.invert) 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.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
	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*/

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);
		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);

		var position = this.element.getStyle('position');
		if (position=='static') position = 'absolute';
		if ([this.element.getStyle('left'), this.element.getStyle('top')].contains('auto')) this.element.position(this.element.getPosition(this.element.offsetParent));
		this.element.setStyle('position', position);

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

		this.overed = null;
	},

	start: function(event){
		if (this.container){
			var ccoo = this.container.getCoordinates(this.element.getOffsetParent()), cbs = {}, ems = {};

			['top', 'right', 'bottom', 'left'].each(function(pad){
				cbs[pad] = this.container.getStyle('border-' + pad).toInt();
				ems[pad] = this.element.getStyle('margin-' + pad).toInt();
			}, this);

			var width = this.element.offsetWidth + ems.left + ems.right;
			var height = this.element.offsetHeight + ems.top + ems.bottom;

			if (this.options.includeMargins) {
				$each(ems, function(value, key) {
					ems[key] = 0;
				});
			}
			if (this.container == this.element.getOffsetParent()) {
				this.options.limit = {
					x: [0 - ems.left, ccoo.right - cbs.left - cbs.right - width + ems.right],
					y: [0 - ems.top, ccoo.bottom - cbs.top - cbs.bottom - height + ems.bottom]
				};
			} else {
				this.options.limit = {
					x: [ccoo.left + cbs.left - ems.left, ccoo.right - cbs.right - width + ems.right],
					y: [ccoo.top + cbs.top - ems.top, ccoo.bottom - cbs.bottom - height + ems.bottom]
				};
			}

		}
		if (this.options.precalculate){
			this.positions = this.droppables.map(function(el) {
				return el.getCoordinates();
			});
		}
		this.parent(event);
	},

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

	License:
		MIT-style license.

	Authors:
		Tom Occhino
*/

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
	},

	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);
			
			return element;
		}, this));
	},

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

	getClone: function(event, element){
		if (!this.options.clone) return new Element('div').inject(document.body);
		if ($type(this.options.clone) == 'function') return this.options.clone.call(this, event, element, this.list);
		return element.clone(true).setStyles({
			margin: '0px',
			position: 'absolute',
			visibility: 'hidden',
			'width': element.getStyle('width')
		}).inject(this.list).position(element.getPosition(element.getOffsetParent()));
	},

	getDroppables: function(){
		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';
		if (this.lists.contains(element)){
			this.list = element;
			this.drag.droppables = this.getDroppables();
		} else {
			where = this.element.getAllPrevious().contains(element) ? 'before' : 'after';
		}
		this.element.inject(element, where);
		this.fireEvent('sort', [this.element, this.clone]);
	},

	start: function(event, element){
		if (!this.idle) 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, {
			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.offsetParent));
			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.Queue.js
	Controls several instances of Request and its variants to run only one request at a time.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

Request.Queue = new Class({

	Implements: [Options, Events],

	Binds: ['attach', 'request', 'complete', 'cancel', 'success', 'failure', 'exception'],

	options: {/*
		onRequest: $empty(argsPassedToOnRequest),
		onSuccess: $empty(argsPassedToOnSuccess),
		onComplete: $empty(argsPassedToOnComplete),
		onCancel: $empty(argsPassedToOnCancel),
		onException: $empty(argsPassedToOnException),
		onFailure: $empty(argsPassedToOnFailure),*/
		stopOnFailure: true,
		autoAdvance: true,
		concurrent: 1,
		requests: {}
	},

	initialize: function(options){
		this.setOptions(options);
		this.requests = new Hash;
		this.addRequests(this.options.requests);
		this.queue = [];
		this.reqBinders = {};
	},

	addRequest: function(name, request){
		this.requests.set(name, request);
		this.attach(name, request);
		return this;
	},

	addRequests: function(obj){
		$each(obj, function(req, name){
			this.addRequest(name, req);
		}, this);
		return this;
	},

	getName: function(req){
		return this.requests.keyOf(req);
	},

	attach: function(name, req){
		if (req._groupSend) return this;
		['request', 'complete', 'cancel', 'success', 'failure', 'exception'].each(function(evt){
			if(!this.reqBinders[name]) this.reqBinders[name] = {};
			this.reqBinders[name][evt] = function(){
				this['on' + evt.capitalize()].apply(this, [name, req].extend(arguments));
			}.bind(this);
			req.addEvent(evt, this.reqBinders[name][evt]);
		}, this);
		req._groupSend = req.send;
		req.send = function(options){
			this.send(name, options);
			return req;
		}.bind(this);
		return this;
	},

	removeRequest: function(req){
		var name = $type(req) == 'object' ? this.getName(req) : req;
		if (!name && $type(name) != 'string') return this;
		req = this.requests.get(name);
		if (!req) return this;
		['request', 'complete', 'cancel', 'success', 'failure', 'exception'].each(function(evt){
			req.removeEvent(evt, this.reqBinders[name][evt]);
		}, this);
		req.send = req._groupSend;
		delete req._groupSend;
		return this;
	},

	getRunning: function(){
		return this.requests.filter(function(r){ return r.running; });
	},

	isRunning: function(){
		return !!this.getRunning().getKeys().length;
	},

	send: function(name, options){
		var q = function(){
			this.requests.get(name)._groupSend(options);
			this.queue.erase(q);
		}.bind(this);
		q.name = name;
		if (this.getRunning().getKeys().length >= this.options.concurrent || (this.error && this.options.stopOnFailure)) this.queue.push(q);
		else q();
		return this;
	},

	hasNext: function(name){
		return (!name) ? !!this.queue.length : !!this.queue.filter(function(q){ return q.name == name; }).length;
	},

	resume: function(){
		this.error = false;
		(this.options.concurrent - this.getRunning().getKeys().length).times(this.runNext, this);
		return this;
	},

	runNext: function(name){
		if (!this.queue.length) return this;
		if (!name){
			this.queue[0]();
		} else {
			var found;
			this.queue.each(function(q){
				if (!found && q.name == name){
					found = true;
					q();
				}
			});
		}
		return this;
	},

	runAll: function() {
		this.queue.each(function(q) {
			q();
		});
		return this;
	},

	clear: function(name){
		if (!name){
			this.queue.empty();
		} else {
			this.queue = this.queue.map(function(q){
				if (q.name != name) return q;
				else return false;
			}).filter(function(q){ return q; });
		}
		return this;
	},

	cancel: function(name){
		this.requests.get(name).cancel();
		return this;
	},

	onRequest: function(){
		this.fireEvent('request', arguments);
	},

	onComplete: function(){
		this.fireEvent('complete', arguments);
	},

	onCancel: function(){
		if (this.options.autoAdvance && !this.error) this.runNext();
		this.fireEvent('cancel', arguments);
	},

	onSuccess: function(){
		if (this.options.autoAdvance && !this.error) this.runNext();
		this.fireEvent('success', arguments);
	},

	onFailure: function(){
		this.error = true;
		if (!this.options.stopOnFailure && this.options.autoAdvance) this.runNext();
		this.fireEvent('failure', arguments);
	},

	onException: function(){
		this.error = true;
		if (!this.options.stopOnFailure && this.options.autoAdvance) this.runNext();
		this.fireEvent('exception', arguments);
	}

});


/*
Script: Request.Periodical.js
	Requests the same url at a time interval that increases when no data is returned from the requested server

	License:
		MIT-style license.

	Authors:
		Christoph Pojer

*/

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(j){
			$clear(this.timer);
			if (j) this.lastDelay = this.options.delay;
			else this.lastDelay = (this.lastDelay+this.options.delay).min(this.options.limit);
			this.timer = fn.delay(this.lastDelay, this);
		};
		this.addEvent('complete', this.completeCheck);
		return this;
	},

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

});

/*
Script: IframeShim.js
	Defines IframeShim, a class for obscuring select lists and flash objects in IE.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

var IframeShim = new Class({

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

	options: {
		className: 'iframeShim',
		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:'javascript:false;document.write("");',
				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 (Browser.Engine.trident && !IframeShim.ready) window.addEvent('load', inject);
			else inject();
		} else {
			this.position = this.hide = this.show = this.dispose = $lambda(this);
		}
	},

	position: function(){
		if (!IframeShim.ready) return this;
		var size = this.element.measure(function(){ return this.getSize(); });
		if ($type(this.options.margin)){
			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;
		}
		if (this.shim) {
			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;
});