function calPopup(mylink, windowname)
{
	if (! window.focus)return true;
	var href;
	if (typeof(mylink) == 'string')
	   href=mylink;
	else
	   href=mylink.href;
	window.open(href, windowname, 'width=550,height=400,toolbar=no,directories=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no');
	return false;
}