var lastMenu=""
<!--
function showMenu(div)
{
  
  if(lastMenu!="" && lastMenu!=div)showMenu(lastMenu);
  
  var menuId=div.id;
  var imgMenu=document.getElementById("img" + menuId );
  var subMenu=document.getElementById("sub" + menuId );
  if(subMenu.style.display=="block")
  {
    imgMenu.src="images/nav-arrow-right.gif";
	subMenu.style.display="none"
	lastMenu=""
  }
  else
  {
    lastMenu=div;
	imgMenu.src="images/nav-arrow-down.gif";
	subMenu.style.display="block";
  }
}

//-->