//推荐图片滑动门
function tabchange(obj,id)
{
 var arrayli = obj.parentnode.getelementsbytagname("li"); //获取li数组
 var arrayul = document.getelementbyid(id).getelementsbytagname("ul"); //获取ul数组
 for(i=0;i<arrayul.length;i++)
 {
  if(obj==arrayli[i])
  {
   arrayli[i].classname = "cli";
   arrayul[i].classname = "";
  }
  else
  {
   arrayli[i].classname = "";
   arrayul[i].classname = "hidden";
  }
 }
}
//选项卡
function settab(name,m,n){ 
for( var i=1;i<=n;i++){ 
var menu = document.getelementbyid(name+i); 
var showdiv = document.getelementbyid("cont_"+name+"_"+i); 
menu.classname = i==m ?"on":""; 
showdiv.style.display = i==m?"block":"none"; 
} 
}