//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);
	}

});

Fx.Shake = new Class({

	Extends: Fx.Tween,

	options: {
		times: 5
	},

	initialize: function(){
		this.parent.apply(this, arguments);
		if (this.options.property) {
			this.property = this.options.property;
			delete this.options.property;
		}
		this._start = this.start;
		this.start = this.shake;
		this.duration = this.options.duration;
		this.shakeChain = new Chain();
	},

	complete: function(){
		if (!this.shakeChain.$chain.length && this.stopTimer()) this.onComplete();
		else if (this.shakeChain.$chain.length) this.shakeChain.callChain();
		return this;
	},

	shake: function(property, distance, times){
		if (!this.check(arguments.callee, property, distance)) return this;
		var args = Array.link(arguments, {property: String.type, distance: $defined, times: $defined});
		property = this.property || args.property;
		times = args.times || this.options.times;
		//dbug.log(times);
		this.stepDur = this.duration / (times + 1);
		this._getTransition = this.getTransition;
		this.origin = this.element.getStyle(property).toInt()||0;
		this.shakeChain.chain(
			function(){
				this.shakeChain.chain(
					function() {
							this.stopTimer();
							this.getTransition = this._getTransition;
							this.options.duration = this.stepDur / 2;
							//stage three, return to origin
							this._start(property, this.origin);
					}.bind(this)
				);
				this.getTransition = function(){
					return function(p){
						return (1 + Math.sin( times*p*Math.PI - Math.PI/2 )) / 2;
					}.bind(this);
				}.bind(this);
				this.stopTimer();
				this.options.duration = this.stepDur * times;
				//stage 2: offset to the other side using the shake transition
				this._start(property, this.origin - args.distance);
			}.bind(this)
		);
		this.options.duration = this.stepDur / 2;
		//stage 1: offset to one side
		return this._start(property, this.origin + args.distance);
	},

	onCancel: function(){
		this.parent();
		this.shakeChain.clearChain();
		return this;
	}

});

Element.Properties.shake = {

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

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

};

Element.implement({

	shake: function(property, distance, times, options){
		var args = Array.link(arguments, {property: String.type, distance: Number.type, times: Number.type, options: Object.type});
		if (args.options) this.set('shake', args.options);
		this.get('shake').start(args.property, args.distance, args.times);
		return this;
	}

})

Slideshow = new Class({
	Implements: [Chain, Events, Options],
	
	options: {/*
		onComplete: $empty,
		onEnd: $empty,
		onStart: $empty,*/
		captions: false,
		center: true,
		classes: [],
		controller: false,
		delay: 2000,
		duration: 750,
		fast: false,
		height: false,
		href: '',
		hu: '',
		linked: false,
		loader: {'animate': ['css/loader-#.png', 12]},
		loop: true,
		match: /\?slide=(\d+)$/,
		overlap: true,
		paused: false,
		properties: ['href', 'rel', 'rev', 'title'],
		random: false,
		replace: [/(\.[^\.]+)$/, 't$1'],
		resize: 'width',
		slide: 0,
		thumbnails: false,
		titles: true,
		//roundedCorners: true,
		transition: function(p){return -(Math.cos(Math.PI * p) - 1) / 2;},
		width: false
	},
	
/**
Constructor: initialize
	Creates an instance of the Slideshow class.
	
Arguments:
	element - (element) The wrapper element.
	data - (array or object) The images and optional thumbnails, captions and links for the show.
	options - (object) The options below.
	
Syntax:
	var myShow = new Slideshow(element, data, options);
*/

	initialize: function(el, data, options){	
		this.setOptions(options);
		this.slideshow = $(el);
		if (!this.slideshow) 
			return;
		this.slideshow.set('styles', {'display': 'block', 'position': 'relative', 'z-index': 0});
		var match = window.location.href.match(this.options.match);
		this.slide = (this.options.match && match) ? match[1].toInt() : this.options.slide;
		this.counter = this.delay = this.transition = 0;
		this.direction = 'left';
		this.paused = false;
		if (!this.options.overlap)
			this.options.duration *= 2;
		var anchor = this.slideshow.getElement('a') || new Element('a');
		if (!this.options.href)
			this.options.href = anchor.get('href') || '';
		if (this.options.hu.length && !this.options.hu.test(/\/$/)) 
			this.options.hu += '/';
		if (this.options.fast === true)
			this.options.fast = 2;
			
		// styles
		
		var keys = ['slideshow', 'first', 'prev', 'play', 'pause', 'next', 'last', 'images', 'captions', 'controller', 'thumbnails', 'hidden', 'visible', 'inactive', 'active', 'loader'];
		var values = keys.map(function(key, i){
			return this.options.classes[i] || key;
		}, this);
		this.classes = values.associate(keys);
		this.classes.get = function(){
			var str = '.' + this.slideshow;
			for (var i = 0, l = arguments.length; i < l; i++)
				str += ('-' + this[arguments[i]]);
			return str;
		}.bind(this.classes);
			
		// data	
			
		if (!data){
			this.options.hu = '';
			data = {};
			var thumbnails = this.slideshow.getElements(this.classes.get('thumbnails') + ' img');
			this.slideshow.getElements(this.classes.get('images') + ' img').each(function(img, i){
				var src = img.get('src');
				var caption = $pick(img.get('alt'), img.get('title'), '');
				var parent = img.getParent();
				var properties = (parent.get('tag') == 'a') ? parent.getProperties : {};
				var href = img.getParent().get('href') || '';
				var thumbnail = (thumbnails[i]) ? thumbnails[i].get('src') : '';
				data[src] = {'caption': caption, 'href': href, 'thumbnail': thumbnail};
			});
		}
		var loaded = this.load(data);
		if (!loaded)
			return; 
		
		// events
		
		this.events = $H({'keydown': [], 'keyup': [], 'mousemove': []});
		var keyup = function(e){
			switch(e.key){
				case 'left': 
					this.prev(e.shift); break;
				case 'right': 
					this.next(e.shift); break;
				case 'p': 
					this.pause(); break;
			}
		}.bind(this);		
		this.events.keyup.push(keyup);
		document.addEvent('keyup', keyup);

		// required elements
			
		var el = this.slideshow.getElement(this.classes.get('images'));
		var images = (el) ? el.empty() : new Element('div', {'class': this.classes.get('images').substr(1)}).inject(this.slideshow);
		var div = images.getSize();
		this.height = this.options.height || div.y;		
		this.width = this.options.width || div.x;
		images.set({'styles': {'display': 'block', 'height': this.height, 'overflow': 'hidden', 'position': 'relative', 'width': this.width}});
		this.slideshow.store('images', images);
		// hierfür eine option erstellen START
		new Element('div').addClass('slideTL').inject(this.slideshow, 'inside');
		new Element('div').addClass('slideTR').setStyles({'left': images.getSize().x - 13 + 'px'}).inject(this.slideshow, 'inside');
		new Element('div').addClass('slideBL').setStyles({'top': images.getSize().y - 13 + 'px'}).inject(this.slideshow, 'inside');
		new Element('div').addClass('slideBR').setStyles({'top': images.getSize().y - 13 + 'px','left': images.getSize().x - 13 + 'px'}).inject(this.slideshow, 'inside');
		// hierfür eine option erstellen END
		this.a = this.image = this.slideshow.getElement('img') || new Element('img');
		if (Browser.Engine.trident && Browser.Engine.version > 4)
			this.a.style.msInterpolationMode = 'bicubic';
		this.a.set('styles', {'display': 'none', 'position': 'absolute', 'zIndex': 1});
		this.b = this.a.clone();
		[this.a, this.b].each(function(img){
			anchor.clone().cloneEvents(anchor).grab(img).inject(images);
		});
		
		// optional elements
		
		if (this.options.captions)
 			this._captions();
		if (this.options.controller)
			this._controller();
		if (this.options.loader)
 			this._loader();
		if (this.options.thumbnails)
			this._thumbnails();
			
		// begin show
		
		this._preload();
	},
	
/**
Public method: go
	Jump directly to a slide in the show.

Arguments:
	n - (integer) The index number of the image to jump to, 0 being the first image in the show.
	
Syntax:
	myShow.go(n);	
*/

	go: function(n, direction){
		if ((this.slide - 1 + this.data.images.length) % this.data.images.length == n || $time() < this.transition)
			return;		
		$clear(this.timer);
		this.delay = 0;		
		this.direction = (direction) ? direction : ((n < this.slide) ? 'right' : 'left');
		this.slide = n;
		if (this.preloader) 
			this.preloader = this.preloader.destroy();
		this._preload(this.options.fast == 2 || (this.options.fast == 1 && this.paused));
	},

/**
Public method: first
	Goes to the first image in the show.

Syntax:
	myShow.first();	
*/

	first: function(){
		this.prev(true); 
	},

/**
Public method: prev
	Goes to the previous image in the show.

Syntax:
	myShow.prev();	
*/

	prev: function(first){
		var n = 0;
		if (!first){
			if (this.options.random){
				
				// if it's a random show get the previous slide from the showed array

				if (this.showed.i < 2)
					return;
				this.showed.i -= 2;
				n = this.showed.array[this.showed.i];
			}
			else
				n = (this.slide - 2 + this.data.images.length) % this.data.images.length;									
		}
		this.go(n, 'right');
	},

/**
Public method: pause
	Toggles play / pause state of the show.

Arguments:
	p - (undefined, 1 or 0) Call pause with no arguments to toggle the pause state. Call pause(1) to force pause, or pause(0) to force play.

Syntax:
	myShow.pause(p);	
*/

	pause: function(p){
		if ($chk(p))
			this.paused = (p) ? false : true;
		if (this.paused){
			this.paused = false;
			this.delay = this.transition = 0;		
			this.timer = this._preload.delay(100, this);
			[this.a, this.b].each(function(img){
				['morph', 'tween'].each(function(p){
					if (this.retrieve(p)) this.get(p).resume();
				}, img);
			});
			if (this.options.controller)
				this.slideshow.getElement('.' + this.classes.pause).removeClass(this.classes.play);
		} 
		else {
			this.paused = true;
			this.delay = Number.MAX_VALUE;
			this.transition = 0;
			$clear(this.timer);
			[this.a, this.b].each(function(img){
				['morph', 'tween'].each(function(p){
					if (this.retrieve(p)) this.get(p).pause();
				}, img);
			});
			if (this.options.controller)
				this.slideshow.getElement('.' + this.classes.pause).addClass(this.classes.play);
		}
	},
	
/**
Public method: next
	Goes to the next image in the show.

Syntax:
	myShow.next();	
*/

	next: function(last){
		var n = (last) ? this.data.images.length - 1 : this.slide;
		this.go(n, 'left');
	},

/**
Public method: last
	Goes to the last image in the show.

Syntax:
	myShow.last();	
*/

	last: function(){
		this.next(true); 
	},

/**
Public method: load
	Loads a new data set into the show: will stop the current show, rewind and rebuild thumbnails if applicable.

Arguments:
	data - (array or object) The images and optional thumbnails, captions and links for the show.

Syntax:
	myShow.load(data);
*/

	load: function(data){
		this.firstrun = true;
		this.showed = {'array': [], 'i': 0};
		if ($type(data) == 'array'){
			this.options.captions = false;			
			data = new Array(data.length).associate(data.map(function(image, i){ return image + '?' + i })); 
		}
		this.data = {'images': [], 'captions': [], 'hrefs': [], 'thumbnails': []};
		for (var image in data){
			var obj = data[image] || {};
			var caption = (obj.caption) ? obj.caption.trim() : '';
			var href = (obj.href) ? obj.href.trim() : ((this.options.linked) ? this.options.hu + image : this.options.href);
			var thumbnail = (obj.thumbnail) ? obj.thumbnail.trim() : image.replace(this.options.replace[0], this.options.replace[1]);
			this.data.images.push(image);
			this.data.captions.push(caption);
			this.data.hrefs.push(href);
			this.data.thumbnails.push(thumbnail);
		}
		if (this.options.random)
			this.slide = $random(0, this.data.images.length - 1);
		
		// only run when data is loaded dynamically into an existing slideshow instance
		
		if (this.options.thumbnails && this.slideshow.retrieve('thumbnails'))
			this._thumbnails();
		if (this.slideshow.retrieve('images')){
			[this.a, this.b].each(function(img){
				['morph', 'tween'].each(function(p){
					if (this.retrieve(p)) this.get(p).cancel();
				}, img);
			});
			this.slide = this.transition = 0;
			this.go(0);		
		}
		return this.data.images.length;
	},
	
/**
Public method: destroy
	Destroys a Slideshow instance.

Arguments:
	p - (string) The images and optional thumbnails, captions and links for the show.

Syntax:
	myShow.destroy(p);
*/

	destroy: function(p){
		this.events.each(function(array, e){
			array.each(function(fn){ document.removeEvent(e, fn); });
		});
		this.pause(1);
		if (this.options.loader)
			$clear(this.slideshow.retrieve('loader').retrieve('timer'));		
		if (this.options.thumbnails)
			$clear(this.slideshow.retrieve('thumbnails').retrieve('timer'));
		this.slideshow.uid = Native.UID++;
		if (p)
			this.slideshow[p]();
	},
	
/**
Private method: preload
	Preloads the next slide in the show, once loaded triggers the show, updates captions, thumbnails, etc.
*/

	_preload: function(fast){
		if (!this.preloader)
		 	this.preloader = new Asset.image(this.options.hu + this.data.images[this.slide], {'onload': function(){
				this.store('loaded', true);
			}});	
		if (this.preloader.retrieve('loaded') && $time() > this.delay && $time() > this.transition){
			if (this.stopped){
				if (this.options.captions)
					this.slideshow.retrieve('captions').get('morph').cancel().start(this.classes.get('captions', 'hidden'));
				this.pause(1);
				if (this.end)
					this.fireEvent('end');
				this.stopped = this.end = false;
				return;				
			}					
			this.image = (this.counter % 2) ? this.b : this.a;
			this.image.set('styles', {'display': 'block', 'height': 'auto', 'visibility': 'hidden', 'width': 'auto', 'zIndex': this.counter});
			['src', 'height', 'width'].each(function(prop){
				this.image.set(prop, this.preloader.get(prop));
			}, this);
			this._resize(this.image);
			this._center(this.image);
			var anchor = this.image.getParent();
			if (this.data.hrefs[this.slide])
				anchor.set('href', this.data.hrefs[this.slide]);			
			else
				anchor.erase('href');
			var text = (this.data.captions[this.slide])
				? this.data.captions[this.slide].replace(/<.+?>/gm, '').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, "'") 
				: '';
			this.image.set('alt', text);		
			if (this.options.titles)
				anchor.set('title', text);
			if (this.options.loader)
				this.slideshow.retrieve('loader').fireEvent('hide');
			if (this.options.captions)
				this.slideshow.retrieve('captions').fireEvent('update', fast);				
			if (this.options.thumbnails)
				this.slideshow.retrieve('thumbnails').fireEvent('update', fast); 			
			this._show(fast);
			this._loaded();
		} 
		else {
			if ($time() > this.delay && this.options.loader)
				this.slideshow.retrieve('loader').fireEvent('show');
			this.timer = (this.paused && this.preloader.retrieve('loaded')) ? null : this._preload.delay(100, this, fast); 
		}
	},

/**
Private method: show
	Does the slideshow effect.
*/

	_show: function(fast){
		if (!this.image.retrieve('morph')){
			var options = (this.options.overlap) ? {'duration': this.options.duration, 'link': 'cancel'} : {'duration': this.options.duration / 2, 'link': 'chain'};
			$$(this.a, this.b).set('morph', $merge(options, {'onStart': this._start.bind(this), 'onComplete': this._complete.bind(this), 'transition': this.options.transition}));
		}
		var hidden = this.classes.get('images', ((this.direction == 'left') ? 'next' : 'prev'));
		var visible = this.classes.get('images', 'visible');
		var img = (this.counter % 2) ? this.a : this.b;
		if (fast){			
			img.get('morph').cancel().set(hidden);
			this.image.get('morph').cancel().set(visible); 			
		} 
		else {
			if (this.options.overlap){
				img.get('morph').set(visible);
				this.image.get('morph').set(hidden).start(visible);
			} 
			else	{
				var fn = function(hidden, visible){
					this.image.get('morph').set(hidden).start(visible);
				}.pass([hidden, visible], this);
				hidden = this.classes.get('images', ((this.direction == 'left') ? 'prev' : 'next'));
				img.get('morph').set(visible).start(hidden).chain(fn);
			}
		}
	},
	
/**
Private method: loaded
	Run after the current image has been loaded, sets up the next image to be shown.
*/

	_loaded: function(){
		this.counter++;
		this.delay = (this.paused) ? Number.MAX_VALUE : $time() + this.options.duration + this.options.delay;
		this.direction = 'left';
		this.transition = (this.options.fast == 2 || (this.options.fast == 1 && this.paused)) ? 0 : $time() + this.options.duration;			
		if (this.slide + 1 == this.data.images.length && !this.options.loop && !this.options.random)
			this.stopped = this.end = true;			
		if (this.options.random){
			this.showed.i++;
			if (this.showed.i >= this.showed.array.length){
				var n = this.slide;
				if (this.showed.array.getLast() != n) this.showed.array.push(n);
				while (this.slide == n)
					this.slide = $random(0, this.data.images.length - 1);				
			}
			else
				this.slide = this.showed.array[this.showed.i];
		}
		else
			this.slide = (this.slide + 1) % this.data.images.length;
		if (this.image.getStyle('visibility') != 'visible')
			(function(){ this.image.setStyle('visibility', 'visible'); }).delay(1, this);			
		if (this.preloader) 
			this.preloader = this.preloader.destroy();
		this._preload();
	},

/**
Private method: center
	Center an image.
*/

	_center: function(){
		if (this.options.roundedCorners){
			var size = img.getSize();
			img.set('styles', {'left': (size.x - this.width) / -2, 'top': (size.y - this.height) / -2});
		}
	},

/**
Private method: resize
	Resizes an image.
*/

	_resize: function(img){
		if (this.options.resize){
			var h = this.preloader.get('height'), w = this.preloader.get('width');
			var dh = this.height / h, dw = this.width / w, d;
			if (this.options.resize == 'length')
				d = (dh > dw) ? dw : dh;
			else
				d = (dh > dw) ? dh : dw;
			img.set('styles', {height: Math.ceil(h * d), width: Math.ceil(w * d)});
		}	
	},

/**
Private method: start
	Callback on start of slide change.
*/

	_start: function(){		
		this.fireEvent('start');
	},

/**
Private method: complete
	Callback on start of slide change.
*/

	_complete: function(){
		if (this.firstrun && this.options.paused){
			this.firstrun = false;
			this.pause(1);
		}
		this.fireEvent('complete');
	},

/**
Private method: captions
	Builds the optional caption element, adds interactivity.
	This method can safely be removed if the captions option is not enabled.
*/

	_captions: function(){
 		if (this.options.captions === true) 
 			this.options.captions = {};
		var el = this.slideshow.getElement(this.classes.get('captions'));
		var captions = (el) ? el.empty() : new Element('div', {'class': this.classes.get('captions').substr(1)}).inject(this.slideshow);
		captions.set({
			'events': {
				'update': function(fast){	
					var captions = this.slideshow.retrieve('captions');
					var empty = (this.data.captions[this.slide] === '');
					if (fast){
						var p = (empty) ? 'hidden' : 'visible';
						captions.set('html', this.data.captions[this.slide]).get('morph').cancel().set(this.classes.get('captions', p));
					}
					else {
						var fn = (empty) ? $empty : function(n){
							this.slideshow.retrieve('captions').set('html', this.data.captions[n]).morph(this.classes.get('captions', 'visible'))
						}.pass(this.slide, this);		
						captions.get('morph').cancel().start(this.classes.get('captions', 'hidden')).chain(fn);
					}
				}.bind(this)
			},
			'morph': $merge(this.options.captions, {'link': 'chain'})
		});
		this.slideshow.store('captions', captions);
	},

/**
Private method: controller
	Builds the optional controller element, adds interactivity.
	This method can safely be removed if the controller option is not enabled.
*/

	_controller: function(){
 		if (this.options.controller === true)
 			this.options.controller = {};
		var el = this.slideshow.getElement(this.classes.get('controller'));
		var controller = (el) ? el.empty() : new Element('div', {'class': this.classes.get('controller').substr(1)}).inject(this.slideshow);
		var ul = new Element('ul').inject(controller);
		$H({'first': 'Shift + Leftwards Arrow', 'prev': 'Leftwards Arrow', 'pause': 'P', 'next': 'Rightwards Arrow', 'last': 'Shift + Rightwards Arrow'}).each(function(accesskey, action){
			var li = new Element('li', {
				'class': (action == 'pause' && this.options.paused) ? this.classes.play + ' ' + this.classes[action] : this.classes[action]
			}).inject(ul);
			var a = this.slideshow.retrieve(action, new Element('a', {
				'title': ((action == 'pause') ? this.classes.play.capitalize() + ' / ' : '') + this.classes[action].capitalize() + ' [' + accesskey + ']'				
			}).inject(li));
			a.set('events', {
				'click': function(action){this[action]();}.pass(action, this),
				'mouseenter': function(active){this.addClass(active);}.pass(this.classes.active, a),
				'mouseleave': function(active){this.removeClass(active);}.pass(this.classes.active, a)
			});		
		}, this);
		controller.set({
			'events': {
				'hide': function(hidden){  
					if (!this.retrieve('hidden'))
						this.store('hidden', true).morph(hidden);
				}.pass(this.classes.get('controller', 'hidden'), controller),
				'show': function(visible){  
					if (this.retrieve('hidden'))
						this.store('hidden', false).morph(visible);
				}.pass(this.classes.get('controller', 'visible'), controller)
			},
			'morph': $merge(this.options.controller, {'link': 'cancel'})
		}).store('hidden', false);
		var keydown = function(e){
			if (['left', 'right', 'p'].contains(e.key)){
				var controller = this.slideshow.retrieve('controller');
				if (controller.retrieve('hidden'))
					controller.get('morph').set(this.classes.get('controller', 'visible')); 			
				switch(e.key){
					case 'left': 
						this.slideshow.retrieve((e.shift) ? 'first' : 'prev').fireEvent('mouseenter'); break;
					case 'right':
						this.slideshow.retrieve((e.shift) ? 'last' : 'next').fireEvent('mouseenter'); break;
					default:
						this.slideshow.retrieve('pause').fireEvent('mouseenter'); break;
				}
			}
		}.bind(this);
		this.events.keydown.push(keydown);
		var keyup = function(e){
			if (['left', 'right', 'p'].contains(e.key)){
				var controller = this.slideshow.retrieve('controller');
				if (controller.retrieve('hidden'))
					controller.store('hidden', false).fireEvent('hide'); 
				switch(e.key){
					case 'left': 
						this.slideshow.retrieve((e.shift) ? 'first' : 'prev').fireEvent('mouseleave'); break;
					case 'right': 
						this.slideshow.retrieve((e.shift) ? 'last' : 'next').fireEvent('mouseleave'); break;
					default:
						this.slideshow.retrieve('pause').fireEvent('mouseleave'); break;
				}
			}
		}.bind(this);
		this.events.keyup.push(keyup);
		var mousemove = function(e){
			var images = this.slideshow.retrieve('images').getCoordinates();
			if (e.page.x > images.left && e.page.x < images.right && e.page.y > images.top && e.page.y < images.bottom)
				this.slideshow.retrieve('controller').fireEvent('show');
			else
				this.slideshow.retrieve('controller').fireEvent('hide');
		}.bind(this);
		this.events.mousemove.push(mousemove);
		document.addEvents({'keydown': keydown, 'keyup': keyup, 'mousemove': mousemove});
		this.slideshow.retrieve('controller', controller).fireEvent('hide');
	},

/**
Private method: loader
	Builds the optional loader element, adds interactivity.
	This method can safely be removed if the loader option is not enabled.
*/

	_loader: function(){
 		if (this.options.loader === true) 
 			this.options.loader = {};
		var loader = new Element('div', {
			'class': this.classes.get('loader').substr(1),				
			'morph': $merge(this.options.loader, {'link': 'cancel'})
		}).store('hidden', false).store('i', 1).inject(this.slideshow.retrieve('images'));
		if (this.options.loader.animate){
			for (var i = 0; i < this.options.loader.animate[1]; i++)
				img = new Asset.image(this.options.loader.animate[0].replace(/#/, i));
			if (Browser.Engine.trident4 && this.options.loader.animate[0].contains('png'))
				loader.setStyle('backgroundImage', 'none');					
		}
		loader.set('events', {
			'animate': function(){  
				var loader = this.slideshow.retrieve('loader');				
				var i = (loader.retrieve('i').toInt() + 1) % this.options.loader.animate[1];
				loader.store('i', i);
				var img = this.options.loader.animate[0].replace(/#/, i);
				if (Browser.Engine.trident4 && this.options.loader.animate[0].contains('png'))
					loader.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + img + '", sizingMethod="scale")';
				else 
					loader.setStyle('backgroundImage', 'url(' + img + ')');
			}.bind(this),
			'hide': function(){  
				var loader = this.slideshow.retrieve('loader');
				if (!loader.retrieve('hidden')){
					loader.store('hidden', true).morph(this.classes.get('loader', 'hidden'));
					if (this.options.loader.animate)
						$clear(loader.retrieve('timer'));					
				}
			}.bind(this),
			'show': function(){  
				var loader = this.slideshow.retrieve('loader');
				if (loader.retrieve('hidden')){
					loader.store('hidden', false).morph(this.classes.get('loader', 'visible'));
					if (this.options.loader.animate)
						loader.store('timer', function(){this.fireEvent('animate');}.periodical(50, loader));
				}
			}.bind(this)
		});
		this.slideshow.retrieve('loader', loader).fireEvent('hide');
	},
	
/**
Private method: thumbnails
	Builds the optional thumbnails element, adds interactivity.
	This method can safely be removed if the thumbnails option is not enabled.
*/

	_thumbnails: function(){
 		if (this.options.thumbnails === true) 
 			this.options.thumbnails = {}; 
		var el = this.slideshow.getElement(this.classes.get('thumbnails'));
		var thumbnails = (el) ? el.empty() : new Element('div', {'class': this.classes.get('thumbnails').substr(1)}).inject(this.slideshow);
		thumbnails.setStyle('overflow', 'hidden');
		var ul = new Element('ul', {'tween': {'link': 'cancel'}}).inject(thumbnails);
		this.data.thumbnails.each(function(thumbnail, i){
			var li = new Element('li').inject(ul);
			var a = new Element('a', {
				'events': {
					'click': function(i){
						this.go(i); 
						return false; 
					}.pass(i, this),
					'loaded': function(){
						this.data.thumbnails.pop();
						if (!this.data.thumbnails.length){
							var div = thumbnails.getCoordinates();
							var props = thumbnails.retrieve('props');			
							var limit = 0, pos = props[1], size = props[2];		
							thumbnails.getElements('li').each(function(li){			
								var li = li.getCoordinates();		
								if (li[pos] > limit) limit = li[pos];
							}, this);			
							thumbnails.store('limit', div[size] + div[props[0]] - limit);
						}
					}.bind(this)
				},
				'href': this.options.hu + this.data.images[i],
				'morph': $merge(this.options.thumbnails, {'link': 'cancel'})
			}).inject(li);
			if (this.data.captions[i] && this.options.titles)
				a.set('title', this.data.captions[i].replace(/<.+?>/gm, '').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, "'"));
			var img = new Asset.image(this.options.hu + thumbnail, {
				'onload': function(){this.fireEvent('loaded');}.bind(a) 
			}).inject(a);
		}, this);
		thumbnails.set('events', {
			'scroll': function(n, fast){
				var div = this.getCoordinates();
				var ul = this.getElement('ul').getPosition();
				var props = this.retrieve('props');
				var axis = props[3], delta, pos = props[0], size = props[2], value;				
				var tween = this.getElement('ul').get('tween', {'property': pos});	
				if ($chk(n)){
					var li = this.getElements('li')[n].getCoordinates();
					delta = div[pos] + (div[size] / 2) - (li[size] / 2) - li[pos]	
					value = (ul[axis] - div[pos] + delta).limit(this.retrieve('limit'), 0);
					if (fast)	
						tween.set(value);
					else						 
						tween.start(value);
				}
				else{
					var area = div[props[2]] / 3, page = this.retrieve('page'), velocity = -0.2;			
					if (page[axis] < (div[pos] + area))
						delta = (page[axis] - div[pos] - area) * velocity;
					else if (page[axis] > (div[pos] + div[size] - area))
						delta = (page[axis] - div[pos] - div[size] + area) * velocity;			
					if (delta){			
						value = (ul[axis] - div[pos] + delta).limit(this.retrieve('limit'), 0);
						tween.set(value);
					}
				}				
			}.bind(thumbnails),
			'update': function(fast){
				var thumbnails = this.slideshow.retrieve('thumbnails');
				thumbnails.getElements('a').each(function(a, i){	
					if (i == this.slide){
						if (!a.retrieve('active', false)){
							a.store('active', true);
							var active = this.classes.get('thumbnails', 'active');							
							if (fast) a.get('morph').set(active);
							else a.morph(active);
						}
					} 
					else {
						if (a.retrieve('active', true)){
							a.store('active', false);
							var inactive = this.classes.get('thumbnails', 'inactive');						
							if (fast) a.get('morph').set(inactive);
							else a.morph(inactive);
						}
					}
				}, this);
				if (!thumbnails.retrieve('mouseover'))
					thumbnails.fireEvent('scroll', [this.slide, fast]);
			}.bind(this)
		})
		var div = thumbnails.getCoordinates();
		thumbnails.store('props', (div.height > div.width) ? ['top', 'bottom', 'height', 'y'] : ['left', 'right', 'width', 'x']);
		var mousemove = function(e){
			var div = this.getCoordinates();
			if (e.page.x > div.left && e.page.x < div.right && e.page.y > div.top && e.page.y < div.bottom){
				this.store('page', e.page);			
				if (!this.retrieve('mouseover')){
					this.store('mouseover', true);
					this.store('timer', function(){this.fireEvent('scroll');}.periodical(50, this));
				}
			}
			else {
				if (this.retrieve('mouseover')){
					this.store('mouseover', false);				
					$clear(this.retrieve('timer'));
				}
			}
		}.bind(thumbnails);
		this.events.mousemove.push(mousemove);
		document.addEvent('mousemove', mousemove);
		this.slideshow.store('thumbnails', thumbnails);
	}
});