function hdm(o){ 
     o.className="navs_current"; 
     var j; 
     var id; 
     var e; 
     for(var i=1;i<=10;i++){ //数字5为滑动门数量 
       id ="navs"+i; 
       j = document.getElementById(id); 
       e = document.getElementById("sub"+i); 
       if(id != o.id){ 
         j.className="navs_link"; 
         e.style.display = "none"; 
       }else{ 
            e.style.display = "block"; 
       } 
     } 
}

function xxhj(o){
	 o.className="y_current";
	 var j;
	 var id;
	 var e;
	 for(var i=1;i<=2;i++){
	   id ="y"+i;
	   j = document.getElementById(id);
	   e = document.getElementById("y_con"+i);
	   if(id != o.id){
	   	 j.className="y_link";
	   	 e.style.display = "none";
	   }else{
		e.style.display = "block";
	   }
	 }
}