window.addEvent('domready',function(){
    $each($$('.ui-mainmenu-item'),function(el){
        if(el.getElement('.ui-mainmenu-submenu')){
            el.getElement('.ui-mainmenu-submenu').setStyle('top',el.offsetTop+el.offsetHeight);
            el.getElement('.ui-mainmenu-submenu').setStyle('left',el.offsetLeft);
            el.getElement('.ui-mainmenu-submenu').setStyle('opacity',0);
        }
        
        el.addEvents({
            'mouseenter':function(){
                if(el.getElement('.ui-mainmenu-submenu')){
                    el.getElement('.ui-mainmenu-submenu').set('morph', {duration:100});
                    el.getElement('.ui-mainmenu-submenu').morph({opacity:1});
                }
            },
            
            'mouseleave':function(){
                if(el.getElement('.ui-mainmenu-submenu')){
                    el.getElement('.ui-mainmenu-submenu').set('morph', {duration:100});
                    el.getElement('.ui-mainmenu-submenu').morph({opacity:0});
                }
            }
        });
    });
});

document.write('<style>#ui-mainmenu .ui-mainmenu-item{display:block;float:left;}#ui-mainmenu .ui-mainmenu-submenu{position:absolute;top:0;left:0;opacity:0;z-index:100;margin:0;padding:0;list-style-type:none;}#ui-mainmenu .ui-mainmenu-end{clear:both;}</style>');