function explain(wat,msg)
{
newwin=window.open('help.php?wat='+wat+'&msg='+msg,'help','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width=200,height=160,top=200,left=500');
if (!newwin.opener) newwin.opener = self;
newwin.focus();
return false;
}