var DHTML = (document.getElementById || document.all || document.layers); 
function ap_getObj(name) 
{ 
 if (document.getElementById) 
 { 
  return document.getElementById(name).style; 
 } 
 else if (document.all) 
 { 
  return document.all[name].style; 
 } 
 else if (document.layers) 
 { 
  return document.layers[name]; 
 } 
} 
function ap_showWaitMessage(div,flag) 
{ 
 if (!DHTML) return; 
 var x = ap_getObj(div); 
 x.visibility = (flag) ? 'visible':'hidden' 
 if(! document.getElementById) 
  if(document.layers) 
   x.left=280/2; 
 return true; 
}