var ns = (document.layers) ? 1:0;
 var ie = (document.all)    ? 1:0;

 if(ns) {
    document.write('<link rel="stylesheet" type="text/css" href="if_nn.css">');
 } else {
    document.write('<link rel="stylesheet" type="text/css" href="if.css">');
 }


function noright()
{
 if (window.Event) // Only Netscape will have the CAPITAL E.
  document.captureEvents(Event.MOUSEUP); // catch the mouse up event 
 
 function nocontextmenu() // this function only applies to IE4, ignored otherwise.
 { 
  event.cancelBubble = true
  event.returnValue = false;
  return false;
 }
 
 function norightclick(e) // This function is used by all others
 {
  if (window.Event) // again, IE or NAV?
  {
   if (e.which == 2 || e.which == 3)
    return false;
  }
  else
   if (event.button == 2 || event.button == 3)
   {
    event.cancelBubble = true
    event.returnValue = false;
    return false;
   }
  }
  
 document.oncontextmenu = nocontextmenu; // for IE5+
 document.onmousedown = norightclick; // for all others
}
noright();