var cm=null;
document.onclick = new Function("show(null)");
function getPos(el,sProp)
{var iPos = 0;
     while (el!=null)
กกกก {iPos+=el["offset" + sProp];
        el = el.offsetParent;
     }
 return iPos
 }
function show(el,m)
{   
  if (m)
    {
     m.style.display='block'; 
     m.style.pixelLeft = getPos(el,"Left"); 
     m.style.pixelTop = getPos(el,"Top") + el.offsetHeight
    }
    if ((m!=cm) && (cm)) 
    cm.style.display='none';
    cm=m
}