//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2008 Valerio Proietti, <http://mad4milk.net>, MIT Style License.



/*

Script: Fx.Slide.js

	Effect to slide an element in and out of view.



License:

	MIT-style license.

*/



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 = $(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){

		var now = [];

		var x = 2;

		x.times(function(i){

			now[i] = Fx.compute(from[i], to[i], delta);

		});

		return now;

	},



	start: function(how, mode){

		if (!this.check(arguments.callee, 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 = (this.wrapper['offset' + this.layout.capitalize()] == 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.Scroll.js

	Effect to smoothly scroll any element, including the window.



License:

	MIT-style license.

*/



Fx.Scroll = new Class({



	Extends: Fx,



	options: {

		offset: {'x': 0, 'y': 0},

		wheelStops: true

	},



	initialize: function(element, options){

		this.element = this.subject = $(element);

		this.parent(options);

		var cancel = this.cancel.bind(this, false);



		if ($type(this.element) != 'element') this.element = $(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){

		var now = [];

		var x = 2;

		x.times(function(i){

			now.push(Fx.compute(from[i], to[i], delta));

		});

		return now;

	},



	start: function(x, y){

		if (!this.check(arguments.callee, 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 = $(el).getPosition(this.element);

		return this.start(position.x, position.y);

	}



});





/*

Script: Fx.Elements.js

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



License:

	MIT-style license.

*/



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(arguments.callee, 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: Drag.js

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



License:

	MIT-style license.

*/



var Drag = new Class({



	Implements: [Events, Options],



	options: {/*

		onBeforeStart: $empty,

		onStart: $empty,

		onDrag: $empty,

		onCancel: $empty,

		onComplete: $empty,*/

		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 = $(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) : $(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.fireEvent('beforeStart', this.element);

		this.mouse.start = event.page;

		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).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.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);

	},



	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);

	}



});



Element.implement({

	

	makeResizable: function(options){

		return new Drag(this, $merge({modifiers: {'x': 'width', 'y': 'height'}}, options));

	}



});



/*

Script: Drag.Move.js

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



License:

	MIT-style license.

*/



Drag.Move = new Class({



	Extends: Drag,



	options: {

		droppables: [],

		container: false

	},



	initialize: function(element, options){

		this.parent(element, options);

		this.droppables = $$(this.options.droppables);

		this.container = $(this.options.container);

		if (this.container && $type(this.container) != 'element') this.container = $(this.container.getDocument().body);

		element = this.element;

		

		var current = element.getStyle('position');

		var position = (current != 'static') ? current : 'absolute';

		if (element.getStyle('left') == 'auto' || element.getStyle('top') == 'auto') element.position(element.getPosition(element.offsetParent));

		

		element.setStyle('position', position);

		

		this.addEvent('start', function(){

			this.checkDroppables();

		}, true);

	},



	start: function(event){

		if (this.container){

			var el = this.element, cont = this.container, ccoo = cont.getCoordinates(el.offsetParent), cps = {}, ems = {};



			['top', 'right', 'bottom', 'left'].each(function(pad){

				cps[pad] = cont.getStyle('padding-' + pad).toInt();

				ems[pad] = el.getStyle('margin-' + pad).toInt();

			}, this);



			var width = el.offsetWidth + ems.left + ems.right, height = el.offsetHeight + ems.top + ems.bottom;

			var x = [ccoo.left + cps.left, ccoo.right - cps.right - width];

			var y = [ccoo.top + cps.top, ccoo.bottom - cps.bottom - height];



			this.options.limit = {x: x, y: y};

		}

		this.parent(event);

	},



	checkAgainst: function(el){

		el = 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.overed = overed;

				this.fireEvent('enter', [this.element, overed]);

			} else {

				this.overed = null;

			}

		}

	},



	drag: function(event){

		this.parent(event);

		if (this.droppables.length) this.checkDroppables();

	},



	stop: function(event){

		this.checkDroppables();

		this.fireEvent('drop', [this.element, this.overed]);

		this.overed = null;

		return this.parent(event);

	}



});



Element.implement({



	makeDraggable: function(options){

		return new Drag.Move(this, options);

	}



});





/*

Script: Hash.Cookie.js

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



License:

	MIT-style license.

*/



Hash.Cookie = new Class({



	Extends: Cookie,



	options: {

		autoSave: true

	},



	initialize: function(name, options){

		this.parent(name, options);

		this.load();

	},



	save: function(){

		var value = JSON.encode(this.hash);

		if (!value || value.length > 4096) return false; //cookie would be truncated!

		if (value == '{}') this.dispose();

		else this.write(value);

		return true;

	},



	load: function(){

		this.hash = new Hash(JSON.decode(this.read(), true));

		return this;

	}



});



Hash.Cookie.implement((function(){

	

	var methods = {};

	

	Hash.each(Hash.prototype, function(method, name){

		methods[name] = function(){

			var value = method.apply(this.hash, arguments);

			if (this.options.autoSave) this.save();

			return value;

		};

	});

	

	return methods;

	

})());



/*

Script: Color.js

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



License:

	MIT-style license.

*/



var Color = new Native({

  

	initialize: function(color, type){

		if (arguments.length >= 3){

			type = "rgb"; color = Array.slice(arguments, 0, 3);

		} else if (typeof color == 'string'){

			if (color.match(/rgb/)) color = color.rgbToHex().hexToRgb(true);

			else if (color.match(/hsb/)) color = color.hsbToRgb();

			else color = color.hexToRgb(true);

		}

		type = type || 'rgb';

		switch (type){

			case 'hsb':

				var old = color;

				color = color.hsbToRgb();

				color.hsb = old;

			break;

			case 'hex': color = color.hexToRgb(true); break;

		}

		color.rgb = color.slice(0, 3);

		color.hsb = color.hsb || color.rgbToHsb();

		color.hex = color.rgbToHex();

		return $extend(color, this);

	}



});



Color.implement({



	mix: function(){

		var colors = Array.slice(arguments);

		var alpha = ($type(colors.getLast()) == 'number') ? colors.pop() : 50;

		var rgb = this.slice();

		colors.each(function(color){

			color = new Color(color);

			for (var i = 0; i < 3; i++) rgb[i] = Math.round((rgb[i] / 100 * (100 - alpha)) + (color[i] / 100 * alpha));

		});

		return new Color(rgb, 'rgb');

	},



	invert: function(){

		return new Color(this.map(function(value){

			return 255 - value;

		}));

	},



	setHue: function(value){

		return new Color([value, this.hsb[1], this.hsb[2]], 'hsb');

	},



	setSaturation: function(percent){

		return new Color([this.hsb[0], percent, this.hsb[2]], 'hsb');

	},



	setBrightness: function(percent){

		return new Color([this.hsb[0], this.hsb[1], percent], 'hsb');

	}



});



function $RGB(r, g, b){

	return new Color([r, g, b], 'rgb');

};



function $HSB(h, s, b){

	return new Color([h, s, b], 'hsb');

};



function $HEX(hex){

	return new Color(hex, 'hex');

};



Array.implement({



	rgbToHsb: function(){

		var red = this[0], green = this[1], blue = this[2];

		var hue, saturation, brightness;

		var max = Math.max(red, green, blue), min = Math.min(red, green, blue);

		var delta = max - min;

		brightness = max / 255;

		saturation = (max != 0) ? delta / max : 0;

		if (saturation == 0){

			hue = 0;

		} else {

			var rr = (max - red) / delta;

			var gr = (max - green) / delta;

			var br = (max - blue) / delta;

			if (red == max) hue = br - gr;

			else if (green == max) hue = 2 + rr - br;

			else hue = 4 + gr - rr;

			hue /= 6;

			if (hue < 0) hue++;

		}

		return [Math.round(hue * 360), Math.round(saturation * 100), Math.round(brightness * 100)];

	},



	hsbToRgb: function(){

		var br = Math.round(this[2] / 100 * 255);

		if (this[1] == 0){

			return [br, br, br];

		} else {

			var hue = this[0] % 360;

			var f = hue % 60;

			var p = Math.round((this[2] * (100 - this[1])) / 10000 * 255);

			var q = Math.round((this[2] * (6000 - this[1] * f)) / 600000 * 255);

			var t = Math.round((this[2] * (6000 - this[1] * (60 - f))) / 600000 * 255);

			switch (Math.floor(hue / 60)){

				case 0: return [br, t, p];

				case 1: return [q, br, p];

				case 2: return [p, br, t];

				case 3: return [p, q, br];

				case 4: return [t, p, br];

				case 5: return [br, p, q];

			}

		}

		return false;

	}



});



String.implement({



	rgbToHsb: function(){

		var rgb = this.match(/\d{1,3}/g);

		return (rgb) ? hsb.rgbToHsb() : null;

	},

	

	hsbToRgb: function(){

		var hsb = this.match(/\d{1,3}/g);

		return (hsb) ? hsb.hsbToRgb() : null;

	}



});





/*

Script: Group.js

	Class for monitoring collections of events



License:

	MIT-style license.

*/



var Group = new Class({



	initialize: function(){

		this.instances = Array.flatten(arguments);

		this.events = {};

		this.checker = {};

	},



	addEvent: function(type, fn){

		this.checker[type] = this.checker[type] || {};

		this.events[type] = this.events[type] || [];

		if (this.events[type].contains(fn)) return false;

		else this.events[type].push(fn);

		this.instances.each(function(instance, i){

			instance.addEvent(type, this.check.bind(this, [type, instance, i]));

		}, this);

		return this;

	},



	check: function(type, instance, i){

		this.checker[type][i] = true;

		var every = this.instances.every(function(current, j){

			return this.checker[type][j] || false;

		}, this);

		if (!every) return;

		this.checker[type] = {};

		this.events[type].each(function(event){

			event.call(this, this.instances, instance);

		}, this);

	}



});





/*

Script: Assets.js

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



License:

	MIT-style license.

*/



var Asset = new Hash({



	javascript: function(source, properties){

		properties = $extend({

			onload: $empty,

			document: document,

			check: $lambda(true)

		}, properties);

		

		var script = new Element('script', {'src': source, 'type': 'text/javascript'});

		

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

		delete properties.onload; delete properties.check; delete properties.document;

		

		script.addEvents({

			load: load,

			readystatechange: function(){

				if (['loaded', 'complete'].contains(this.readyState)) load();

			}

		}).setProperties(properties);

		

		

		if (Browser.Engine.webkit419) var checker = (function(){

			if (!$try(check)) return;

			$clear(checker);

			load();

		}).periodical(50);

		

		return script.inject(doc.head);

	},



	css: function(source, properties){

		return new Element('link', $merge({

			'rel': 'stylesheet', 'media': 'screen', 'type': 'text/css', 'href': source

		}, properties)).inject(document.head);

	},



	image: function(source, properties){

		properties = $merge({

			'onload': $empty,

			'onabort': $empty,

			'onerror': $empty

		}, properties);

		var image = new Image();

		var element = $(image) || new Element('img');

		['load', 'abort', 'error'].each(function(name){

			var type = 'on' + name;

			var event = properties[type];

			delete properties[type];

			image[type] = function(){

				if (!image) return;

				if (!element.parentNode){

					element.width = image.width;

					element.height = image.height;

				}

				image = image.onload = image.onabort = image.onerror = null;

				event.delay(1, element, element);

				element.fireEvent(name, element, 1);

			};

		});

		image.src = element.src = source;

		if (image && image.complete) image.onload.delay(1);

		return element.setProperties(properties);

	},



	images: function(sources, options){

		options = $merge({

			onComplete: $empty,

			onProgress: $empty

		}, options);

		if (!sources.push) sources = [sources];

		var images = [];

		var counter = 0;

		sources.each(function(source){

			var img = new Asset.image(source, {

				'onload': function(){

					options.onProgress.call(this, counter, sources.indexOf(source));

					counter++;

					if (counter == sources.length) options.onComplete();

				}

			});

			images.push(img);

		});

		return new Elements(images);

	}



});



/*

Script: Sortables.js

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



License:

	MIT-style license.

*/



var Sortables = new Class({



	Implements: [Events, Options],



	options: {/*

		onSort: $empty,

		onStart: $empty,

		onComplete: $empty,*/

		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($$($(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(){

		var elements = [];

		Array.flatten(arguments).each(function(element){

			elements.push(element);

			this.elements.erase(element);

			var start = element.retrieve('sortables:start');

			(this.options.handle ? element.getElement(this.options.handle) || element : element).removeEvent('mousedown', start);

		}, this);

		return $$(elements);

	},



	removeLists: function(){

		var lists = [];

		Array.flatten(arguments).each(function(list){

			lists.push(list);

			this.lists.erase(list);

			this.removeItems(list.getChildren());

		}, this);

		return $$(lists);

	},



	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: Tips.js

	Class for creating nice tips that follow the mouse cursor when hovering an element.



License:

	MIT-style license.

*/



var Tips = new Class({



	Implements: [Events, Options],



	options: {

		onShow: function(tip){

			tip.setStyle('visibility', 'visible');

		},

		onHide: function(tip){

			tip.setStyle('visibility', 'hidden');

		},

		showDelay: 100,

		hideDelay: 100,

		className: null,

		offsets: {x: 16, y: 16},

		fixed: false

	},



	initialize: function(){

		var params = Array.link(arguments, {options: Object.type, elements: $defined});

		this.setOptions(params.options || null);

		

		this.tip = new Element('div').inject(document.body);

		

		if (this.options.className) this.tip.addClass(this.options.className);

		

		var top = new Element('div', {'class': 'tip-top'}).inject(this.tip);

		this.container = new Element('div', {'class': 'tip'}).inject(this.tip);

		var bottom = new Element('div', {'class': 'tip-bottom'}).inject(this.tip);



		this.tip.setStyles({position: 'absolute', top: 0, left: 0, visibility: 'hidden'});

		

		if (params.elements) this.attach(params.elements);

	},

	

	attach: function(elements){

		$$(elements).each(function(element){

			var title = element.retrieve('tip:title', element.get('title'));

			var text = element.retrieve('tip:text', element.get('rel') || element.get('href'));

			var enter = element.retrieve('tip:enter', this.elementEnter.bindWithEvent(this, element));

			var leave = element.retrieve('tip:leave', this.elementLeave.bindWithEvent(this, element));

			element.addEvents({mouseenter: enter, mouseleave: leave});

			if (!this.options.fixed){

				var move = element.retrieve('tip:move', this.elementMove.bindWithEvent(this, element));

				element.addEvent('mousemove', move);

			}

			element.store('tip:native', element.get('title'));

			element.erase('title');

		}, this);

		return this;

	},

	

	detach: function(elements){

		$$(elements).each(function(element){

			element.removeEvent('mouseenter', element.retrieve('tip:enter') || $empty);

			element.removeEvent('mouseleave', element.retrieve('tip:leave') || $empty);

			element.removeEvent('mousemove', element.retrieve('tip:move') || $empty);

			element.eliminate('tip:enter').eliminate('tip:leave').eliminate('tip:move');

			var original = element.retrieve('tip:native');

			if (original) element.set('title', original);

		});

		return this;

	},

	

	elementEnter: function(event, element){

		

		$A(this.container.childNodes).each(Element.dispose);

		

		var title = element.retrieve('tip:title');

		

		if (title){

			this.titleElement = new Element('div', {'class': 'tip-title'}).inject(this.container);

			this.fill(this.titleElement, title);

		}

		

		var text = element.retrieve('tip:text');

		if (text){

			this.textElement = new Element('div', {'class': 'tip-text'}).inject(this.container);

			this.fill(this.textElement, text);

		}

		

		this.timer = $clear(this.timer);

		this.timer = this.show.delay(this.options.showDelay, this);



		this.position((!this.options.fixed) ? event : {page: element.getPosition()});

	},

	

	elementLeave: function(event){

		$clear(this.timer);

		this.timer = this.hide.delay(this.options.hideDelay, this);

	},

	

	elementMove: function(event){

		this.position(event);

	},

	

	position: function(event){

		var size = window.getSize(), scroll = window.getScroll();

		var tip = {x: this.tip.offsetWidth, y: this.tip.offsetHeight};

		var props = {x: 'left', y: 'top'};

		for (var z in props){

			var pos = event.page[z] + this.options.offsets[z];

			if ((pos + tip[z] - scroll[z]) > size[z]) pos = event.page[z] - this.options.offsets[z] - tip[z];

			this.tip.setStyle(props[z], pos);

		}

	},

	

	fill: function(element, contents){

		(typeof contents == 'string') ? element.set('html', contents) : element.adopt(contents);

	},



	show: function(){

		this.fireEvent('show', this.tip);

	},



	hide: function(){

		this.fireEvent('hide', this.tip);

	}



});



/*

Script: SmoothScroll.js

	Class for creating a smooth scrolling effect to all internal links on the page.



License:

	MIT-style license.

*/



var SmoothScroll = new Class({



	Extends: Fx.Scroll,



	initialize: function(options, context){

		context = context || document;

		var doc = context.getDocument(), win = context.getWindow();

		this.parent(doc, options);

		this.links = (this.options.links) ? $$(this.options.links) : $$(doc.links);

		var location = win.location.href.match(/^[^#]*/)[0] + '#';

		this.links.each(function(link){

			if (link.href.indexOf(location) != 0) return;

			var anchor = link.href.substr(location.length);

			if (anchor && $(anchor)) this.useLink(link, anchor);

		}, this);

		if (!Browser.Engine.webkit419) this.addEvent('complete', function(){

			win.location.hash = this.anchor;

		}, true);

	},



	useLink: function(link, anchor){

		link.addEvent('click', function(event){

			this.anchor = anchor;

			this.toElement(anchor);

			event.stop();

		}.bind(this));

	}



});



/*

Script: Slider.js

	Class for creating horizontal and vertical slider controls.



License:

	MIT-style license.

*/



var Slider = new Class({



	Implements: [Events, Options],



	options: {/*

		onChange: $empty,

		onComplete: $empty,*/

		onTick: function(position){

			if(this.options.snap) position = this.toPosition(this.step);

			this.knob.setStyle(this.property, position);

		},

		snap: false,

		offset: 0,

		range: false,

		wheel: false,

		steps: 100,

		mode: 'horizontal'

	},



	initialize: function(element, knob, options){

		this.setOptions(options);

		this.element = $(element);

		this.knob = $(knob);

		this.previousChange = this.previousEnd = this.step = -1;

		this.element.addEvent('mousedown', this.clickedElement.bind(this));

		if (this.options.wheel) this.element.addEvent('mousewheel', this.scrolledElement.bindWithEvent(this));

		var offset, limit = {}, modifiers = {'x': false, 'y': false};

		switch (this.options.mode){

			case 'vertical':

				this.axis = 'y';

				this.property = 'top';

				offset = 'offsetHeight';

				break;

			case 'horizontal':

				this.axis = 'x';

				this.property = 'left';

				offset = 'offsetWidth';

		}

		this.half = this.knob[offset] / 2;

		this.full = this.element[offset] - this.knob[offset] + (this.options.offset * 2);

		this.min = $chk(this.options.range[0]) ? this.options.range[0] : 0;

		this.max = $chk(this.options.range[1]) ? this.options.range[1] : this.options.steps;

		this.range = this.max - this.min;

		this.steps = this.options.steps || this.full;

		this.stepSize = Math.abs(this.range) / this.steps;

		this.stepWidth = this.stepSize * this.full / Math.abs(this.range) ;

		

		this.knob.setStyle('position', 'relative').setStyle(this.property, - this.options.offset);

		modifiers[this.axis] = this.property;

		limit[this.axis] = [- this.options.offset, this.full - this.options.offset];

		this.drag = new Drag(this.knob, {

			snap: 0,

			limit: limit,

			modifiers: modifiers,

			onDrag: this.draggedKnob.bind(this),

			onStart: this.draggedKnob.bind(this),

			onComplete: function(){

				this.draggedKnob();

				this.end();

			}.bind(this)

		});

		if (this.options.snap) {

			this.drag.options.grid = Math.ceil(this.stepWidth);

			this.drag.options.limit[this.axis][1] = this.full;

		}

	},



	set: function(step){

		if (!((this.range > 0) ^ (step < this.min))) step = this.min;

		if (!((this.range > 0) ^ (step > this.max))) step = this.max;

		

		this.step = Math.round(step);

		this.checkStep();

		this.end();

		this.fireEvent('tick', this.toPosition(this.step));

		return this;

	},



	clickedElement: function(event){

		var dir = this.range < 0 ? -1 : 1;

		var position = event.page[this.axis] - this.element.getPosition()[this.axis] - this.half;

		position = position.limit(-this.options.offset, this.full -this.options.offset);

		

		this.step = Math.round(this.min + dir * this.toStep(position));

		this.checkStep();

		this.end();

		this.fireEvent('tick', position);

	},

	

	scrolledElement: function(event){

		var mode = (this.options.mode == 'horizontal') ? (event.wheel < 0) : (event.wheel > 0);

		this.set(mode ? this.step - this.stepSize : this.step + this.stepSize);

		event.stop();

	},



	draggedKnob: function(){

		var dir = this.range < 0 ? -1 : 1;

		var position = this.drag.value.now[this.axis];

		position = position.limit(-this.options.offset, this.full -this.options.offset);

		this.step = Math.round(this.min + dir * this.toStep(position));

		this.checkStep();

	},



	checkStep: function(){

		if (this.previousChange != this.step){

			this.previousChange = this.step;

			this.fireEvent('change', this.step);

		}

	},



	end: function(){

		if (this.previousEnd !== this.step){

			this.previousEnd = this.step;

			this.fireEvent('complete', this.step + '');

		}

	},



	toStep: function(position){

		var step = (position + this.options.offset) * this.stepSize / this.full * this.steps;

		return this.options.steps ? Math.round(step -= step % this.stepSize) : step;

	},



	toPosition: function(step){

		return (this.full * Math.abs(this.min - step)) / (this.steps * this.stepSize) - this.options.offset;

	}



});



/*

Script: Scroller.js

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



License:

	MIT-style license.

*/



var Scroller = new Class({



	Implements: [Events, Options],



	options: {

		area: 20,

		velocity: 1,

		onChange: function(x, y){

			this.element.scrollTo(x, y);

		}

	},



	initialize: function(element, options){

		this.setOptions(options);

		this.element = $(element);

		this.listener = ($type(this.element) != 'element') ? $(this.element.getDocument().body) : this.element;

		this.timer = null;

		this.coord = this.getCoords.bind(this);

	},



	start: function(){

		this.listener.addEvent('mousemove', this.coord);

	},



	stop: function(){

		this.listener.removeEvent('mousemove', this.coord);

		this.timer = $clear(this.timer);

	},



	getCoords: function(event){

		this.page = (this.listener.get('tag') == 'body') ? event.client : event.page;

		if (!this.timer) this.timer = this.scroll.periodical(50, this);

	},



	scroll: function(){

		var size = this.element.getSize(), scroll = this.element.getScroll(), pos = this.element.getPosition(), change = {'x': 0, 'y': 0};

		for (var z in this.page){

			if (this.page[z] < (this.options.area + pos[z]) && scroll[z] != 0)

				change[z] = (this.page[z] - this.options.area - pos[z]) * this.options.velocity;

			else if (this.page[z] + this.options.area > (size[z] + pos[z]) && size[z] + size[z] != scroll[z])

				change[z] = (this.page[z] - size[z] + this.options.area - pos[z]) * this.options.velocity;

		}

		if (change.y || change.x) this.fireEvent('change', [scroll.x + change.x, scroll.y + change.y]);

	}



});



/*

Script: Accordion.js

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



License:

	MIT-style license.

*/



var Accordion = new Class({



	Extends: Fx.Elements,



	options: {/*

		onActive: $empty,

		onBackground: $empty,*/

		display: 0,

		show: false,

		height: true,

		width: false,

		opacity: true,

		fixedHeight: false,

		fixedWidth: false,

		wait: false,

		alwaysHide: false

	},



	initialize: function(){

		var params = Array.link(arguments, {'container': Element.type, 'options': Object.type, 'togglers': $defined, 'elements': $defined});

		this.parent(params.elements, params.options);

		this.togglers = $$(params.togglers);

		this.container = $(params.container);

		this.previous = -1;

		if (this.options.alwaysHide) this.options.wait = true;

		if ($chk(this.options.show)){

			this.options.display = false;

			this.previous = this.options.show;

		}

		if (this.options.start){

			this.options.display = false;

			this.options.show = false;

		}

		this.effects = {};

		if (this.options.opacity) this.effects.opacity = 'fullOpacity';

		if (this.options.width) this.effects.width = this.options.fixedWidth ? 'fullWidth' : 'offsetWidth';

		if (this.options.height) this.effects.height = this.options.fixedHeight ? 'fullHeight' : 'scrollHeight';

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

		this.elements.each(function(el, i){

			if (this.options.show === i){

				this.fireEvent('active', [this.togglers[i], el]);

			} else {

				for (var fx in this.effects) el.setStyle(fx, 0);

			}

		}, this);

		if ($chk(this.options.display)) this.display(this.options.display);

	},



	addSection: function(toggler, element, pos){

		toggler = $(toggler);

		element = $(element);

		var test = this.togglers.contains(toggler);

		var len = this.togglers.length;

		this.togglers.include(toggler);

		this.elements.include(element);

		if (len && (!test || pos)){

			pos = $pick(pos, len - 1);

			toggler.inject(this.togglers[pos], 'before');

			element.inject(toggler, 'after');

		} else if (this.container && !test){

			toggler.inject(this.container);

			element.inject(this.container);

		}

		var idx = this.togglers.indexOf(toggler);

		toggler.addEvent('click', this.display.bind(this, idx));

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

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

		element.fullOpacity = 1;

		if (this.options.fixedWidth) element.fullWidth = this.options.fixedWidth;

		if (this.options.fixedHeight) element.fullHeight = this.options.fixedHeight;

		element.setStyle('overflow', 'hidden');

		if (!test){

			for (var fx in this.effects) element.setStyle(fx, 0);

		}

		return this;

	},



	display: function(index){

		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;

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

		this.previous = index;

		var obj = {};

		this.elements.each(function(el, i){

			obj[i] = {};

			var hide = (i != index) || (this.options.alwaysHide && (el.offsetHeight > 0));

			this.fireEvent(hide ? 'background' : 'active', [this.togglers[i], el]);

			for (var fx in this.effects) obj[i][fx] = hide ? 0 : el[this.effects[fx]];

		}, this);

		return this.start(obj);

	}



});