function openpopup(popurl, w, h, sizable) {
	str = 'width='+w+',height='+h;
	if ( sizable != true ) {
		str = str + ',scrollbars=no,resizable=no,status=no';
	} else {
		str = str + ',scrollbars=yes,resizable=yes,status=yes';
	}
	window.open(popurl,'',str);
}
if (self != top) {
	if (document.images)
		top.location.replace(self.location.href);
	else
		top.location.href = self.location.href;
}