var SlideList = new Class({
	initialize: function(menu, options) {
		this.setOptions(this.getOptions(), options);
		this.menu = $(menu);
		if (this.menu.getElement('li.current')==null) {
			this.current = this.menu.getElements('li')[0];
		}
		else {
			this.current = this.menu.getElement('li.current');
		}
		this.menu.getElements('li').each(function(item){
			item.addEvent('mouseenter', function(event){
					if(this.current!=item) {
						if (window.ie6) {
							item.getElement('a').setStyle('color','black');
						}
						else
						{
							item.getElement('a').setStyle('color','#ffffff');
						}
						this.current.getElement('a').setStyle('color','black'); 
						this.moveBg(item);
					}
				}.bind(this));
			item.addEvent('mouseleave', function(event){
					item.getElement('a').setStyle('color','black');
					if (window.ie6) {
					this.current.getElement('a').setStyle('color','black'); 
					}
					else
					{
						this.current.getElement('a').setStyle('color','#ffffff'); 
					}
					this.moveBg(this.current); 
				}.bind(this));
			item.addEvent('click', function(event){ 
				this.clickItem(event, item); }.bind(this));
		}.bind(this));

		this.back = new Element('li').addClass('background').adopt(new Element('div').addClass('left')).injectInside(this.menu);
		this.back.fx = this.back.effects(this.options);
		if(this.current) this.setCurrent(this.current);
		},

		setCurrent: function(el, effect){
			if (window.ie6)
			{
				this.current.getElement('a').setStyle("color","black");
			}
			else
			{
				this.current.getElement('a').setStyle("color","#ffffff");
			}
			this.back.setStyles({
				left: (el.offsetLeft)+'px', width: (el.offsetWidth)+'px'});
			this.current = el;
			if (window.ie6)
			{
				this.current.getElement('a').setStyle("color","black");
			}
			else
			{
				this.current.getElement('a').setStyle("color","#ffffff");
			}
		},
		
		getOptions: function(){
			return {
				/*speed between many menu-bubbles*/
				transition: Fx.Transitions.sineInOut,
				duration: 30, wait: false, 
				onClick: Class.empty
			};
		},
		
		clickItem: function(event, item) {
			if(!this.current) this.setCurrent(item, true);
			this.current = item;
			this.options.onClick(new Event(event), item);
		},
		moveBg: function(to) {
			if(!this.current) return;
			this.back.fx.custom({
			left: [this.back.offsetLeft, to.offsetLeft],
			width: [this.back.offsetWidth, to.offsetWidth]
			});
		}	
	});
	
SlideList.implement(new Options);