$(document).ready(function(){
        var DropMenu = new Array();
        var DropBtn = new Array();
        $("#nav>li").each(function(i,item){
            if($(item).find("ul").length<=0) return;
            DropMenu[i] = $(item).find("ul");
            DropBtn[i] = $(item).find(">a");
            DropMenu[i][0].tid = i;
            DropBtn[i][0].tid = i;
            DropBtn[i][0].onmouseover = function(){
                var id = this.tid;
                clearTimeout(DropMenu[id][0].htimeout)
                DropMenu[id].show();
				//alert(DropMenu[id].shadowId());
				if(typeof DropMenu[id].shadowId()== "undefined"){
					DropMenu[id].dropShadow();
				}else{
					DropMenu[id].redrawShadow();
				}
				DropBtn[id].parent().css("background-color","#fff");
				
            }
            DropBtn[i][0].onmouseout = function(){
                var id = this.tid;
                clearTimeout(DropMenu[id][0].htimeout)
                DropMenu[id][0].htimeout = setTimeout(function(){hide(id)},50);
            }
            DropMenu[i][0].onmouseover = function(){
                var id = this.tid;
                clearTimeout(DropMenu[id][0].htimeout)
            }
            DropMenu[i][0].onmouseout = function(){
                var id = this.tid;
                clearTimeout(DropMenu[id][0].htimeout)
                DropMenu[id][0].htimeout = setTimeout(function(){hide(id)},50);
            }
        });
        function hide(id){
            clearTimeout(DropMenu[id][0].htimeout)
            DropMenu[id].hide().removeShadow();
			DropBtn[id].parent().css("background-color","");
        }
});