function display(obj){
 
 
         document.getElementById("apDiv"+obj).style.display="block"; 
 
  }
  function disappear(obj){
         
       document.getElementById("apDiv"+obj).style.display="none"; 
 
  }
 

function showdiv(targetid,objN,num){
  
      var target=document.getElementById(targetid);
      var clicktext=document.getElementById(objN)
 
	 		var html = new Array();
			
                           
            if (target.style.display=="none"){
                target.style.display="block";
                html.push("<img id='aa'   src='images/bar_off.gif' border='0' alt='折叠列表' />");
				document.getElementById("image"+num).innerHTML=html.join("");				 
            } 
			else {
                target.style.display="none";
                html.push("<img id='aa'   src='images/bar_on.gif' border='0' alt='折叠列表' />");
				document.getElementById("image"+num).innerHTML=html.join("");
				 
                
            }
  
}

function cick_botton(targetid,objN){
  
      var target=document.getElementById(targetid);
      var clicktext=document.getElementById(objN)

            if (target.style.display=="none"){
                target.style.display="block";
            } else {
                target.style.display="none";
            }
  
}