var SlideList = new Class({
	initialize: function(menu, options) {
		this.setOptions(this.getOptions(), options);
		this.menu = $(menu), this.current = this.menu.getElement('li.current');
		this.menu.getElements('li').each(function(item){
			item.addEvent('mouseover', function(){ this.moveBg(item); }.bind(this));
			item.addEvent('mouseout', function(){ this.moveBg(this.current); }.bind(this));
			item.addEvent('mouseover', 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){
		this.back.setStyles({left: (el.offsetLeft)+'px', width: (el.offsetWidth)+'px'});
		(effect) ? this.back.effect('opacity').set(0).start(1) : this.back.setOpacity(.4);
		this.current = el;
	},
	getOptions: function(){
		return { transition: Fx.Transitions.sineInOut, duration: 500, 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);

window.addEvent('domready', function() {
	new SlideList($('nav'), {transition: Fx.Transitions.backOut, duration: 700, onClick: function(ev, item) { ev.stop(); }});
});
window.addEvent('domready', init);
function init() {
	myTabs1 = new mootabs('tabs');
}