if (document.images)
{
  menuon= new Image(207,23);
  menuon.src="images/menu_on.jpg";  
  menuoff= new Image(207,23);
  menuoff.src="images/menu_off.jpg";
}
tmpClientHeight=0;

function turnon(cell)
{
  if (document.images)
  {
    imgOn=eval("menuon.src");
    cell.background = imgOn;
  }
}

function turnoff(cell)
{
  if (document.images)
  {
    imgOff=eval("menuoff.src");
    cell.background = imgOff;
  }
}
function onScaleEvent(intClientHeight)
{
 if (intClientHeight != tmpClientHeight)
 {
   try
   {
	 tmpClientHeight = intClientHeight;
     //body.style.zoom=tmpClientHeight/768;
   }
   catch(e)
   {
     // ignore error
   }
 }
}