var mooNav=new Class({Implements:[Events,Options],options:{autoPosition:true,fade:true,fadeDuration:500,mode:'horizontal',onShow:$empty,onHide:$empty,parentClass:'has-sub',slide:true,slideDuration:500},initialize:function(nav,options){this.setOptions(options);if(typeof nav=='string'){nav=$(nav)}var that=this;nav.getElements('li').each(function(li){var child=li.getElement('ul');if(child){child.removeClass('hide');var level=child.getParents('ul').length;li.addClass(that.options.parentClass);if(that.options.slide){var container=new Element('div').inject(li).adopt(child);if(that.options.autoPosition){that.setCss(container,level,that.options.fade,that.options.slide)}var slide=new Fx.Slide(child,{mode:level>1||that.options.mode=='vertical'?'horizontal':'vertical',link:'cancel',duration:that.options.slideDuration}).hide();child=container}else{if(that.options.autoPosition){that.setCss(child,level,that.options.fade,that.options.slide)}}child.set('tween',{duration:that.options.fadeDuration});li.addEvents({mouseenter:function(){if(that.options.slide){slide.slideIn();if(that.options.fade){child.fade('in')}that.fireEvent('show',[li,child.getElement('ul')])}else{child.fade(that.options.fade?'in':'show');that.fireEvent('show',[li,child])}},mouseleave:function(){if(that.options.slide){slide.slideOut();if(that.options.fade){child.fade('out')}that.fireEvent('hide',[li,child.getElement('ul')])}else{child.fade(that.options.fade?'out':'hide');that.fireEvent('hide',[li,child])}}})}})},setCss:function(container,level,fade,slide){var parent=container.getParent('li');container.setStyles({ position: 'absolute', 'z-index': '10' });if(fade||!slide){container.setStyle('opacity',0)}if(level>1){container.setStyles({'left':parent.getStyle('width').toInt()+parent.getStyle('border-left-width').toInt()+parent.getStyle('border-right-width').toInt(),'margin-top':(parent.getStyle('height').toInt()+parent.getStyle('border-top-width').toInt())*-1})}}});