var liList= $("ul.lanmu>li"); 
 var currentLink = document.location.href;
 var linkss=$("ul.lanmu>li>a");
  for(var i=0;i<liList.length;i++){
	  if(currentLink.indexOf(linkss[i])!=-1) 
	  {
	     liList[i].className="current";
	  }}