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=1024,height=768,window.screenTop=50,window.screenLeft=50,resizable=yes,scrollbars=yes');
return false;
}