var win1 = '';

function DoPop(URL,winname)
{ 
if (!win1.closed && win1.location) {
		win1.location.href = URL;
	}
	else {
win1=window.open(URL,winname,'toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=yes copyhistory=no,border=no,width=800,height=450');
		if (!win1.opener) win1.opener = self;
	}
	if (window.focus) {win1.focus()};
	return false;
}