var whichOpen='';
var whichContinue='';

// ϼhid, maxh l氪, id
function menuChange1(obj,maxh,obj2)
{
  if (obj.style.pixelHeight)    // ثe}
     {menuHide1(obj,maxh,obj2);
      whichOpen=''; whichcontinue='';
     }
  else
     {if (whichOpen)
	     {whichContinue=obj2; whichOpen.click();}
	  else
	     {menuShow1(obj,maxh,obj2); whichOpen=obj2; whichContinue='';}
	 }
}

// ܫw
function menuShow1(obj,maxh,obj2)
{
  if (obj.style.pixelHeight < maxh)
  {obj.style.pixelHeight+=maxh/2;
   obj.filters.alpha.opacity+=2;
   obj2.background="images/item_show2.gif";
   if (obj.style.pixelHeight == maxh/2) obj.style.display='block';
   myObj=obj; myMaxh=maxh; myObj2=obj2;
   setTimeout('menuShow1(myObj,myMaxh,myObj2)','5');
  }
}

// w
function menuHide1(obj,maxh,obj2)
{
  if (obj.style.pixelHeight>0)
     {if (obj.style.pixelHeight == maxh/2) obj.style.display='none';
      obj.style.pixelHeight-=maxh/2;
	  obj.filters.alpha.opacity-=2;
	  obj2.background="";
	  myObj=obj; myMaxh=maxh; myObj2=obj2;
	  setTimeout('menuHide1(myObj,myMaxh,myObj2)','5');
     }
  else
     if (whichContinue) whichContinue.click();
}