//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);
}
});