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('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){ this.back.setStyles({left: (el.offsetLeft)+'px', width: (el.offsetWidth)+'px'}); (effect) ? this.back.effect('opacity').set(0).start(1) : this.back.setOpacity(1); 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);