// JScript 文件


function showhide_obj(obj,menu)
{
obj=document.getElementById(obj);//菜单
   
    div_list = document.getElementsByTagName("div");    

    for (i=0; i< div_list.length; i ++)
    {
      thisDiv = div_list[i];     
   if(thisDiv.id.indexOf("title")!=-1)//当文档div中的id含有title时,与charAt类似;
   {   
   thisDiv.style.visibility = "hidden";//循环吧所有菜单链接都隐藏起来   
   }
   }   
    obj.style.visibility = ""; //只显示当前链接  
}

function hide_obj(obj,menu)
{
   obj=document.getElementById(obj);//菜单
   obj.style.visibility="hidden";
}