/*二级菜单*/
function menuFix2() {
  var sfEls2 = document.getElementById("nav").getElementsByTagName("li");
  for(var i=0;i<sfEls2.length;i++) {
		var ulss=sfEls2[i].getElementsByTagName("ul");	
		/*
        if(ulss.length>0) {
		sfEls2[i].className="hadChild";
		}
        */
	}
  for (var i=0; i<sfEls2.length; i++) {
    sfEls2[i].onmouseover=function() {
      this.className+=(this.className.length>0? " ": "") + "show";
    }
    sfEls2[i].onmouseout=function() {
      this.className=this.className.replace(new RegExp("( ?|^)show\\b"), "");
    }
  }
}
window.onload=menuFix2;