function detect()
{
framesetpage="index.htm";
thispage=window.location.href;
if (thispage.indexOf('://')<0) {thispage="://"+thispage;};
prefix=thispage.substring(0,thispage.lastIndexOf('://'));
suffix=thispage.substring(thispage.lastIndexOf('://')+3,thispage.length);
// alert('the subpage is:['+prefix+']['+suffix+']');
if (parent.location.href==window.location.href) {parent.location.href=framesetpage+"?"+prefix+"&&&"+suffix};
}