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; 
}