function popup(mylink, windowname)
 {
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string')
href=mylink;
else
href=mylink.href;
window.open(href, windowname, 'width=425, height=350, menubar=no, resizable=no, location=no, directories=no, status=no, toolbar=no, scrollbars=no');
return false;
}