function popup(mylink, w, h, scroll, tool)
{
if (! window.focus)return true;

document.get

var href;
if (typeof(mylink) == 'string')
    href=mylink;
else
    href=mylink.href;
    window.open(href, '', 'top=150,left=' + ((document.body.clientWidth/2)-(w/2)) + ',width=' + w + ',height=' + h + ',scrollbars=' + scroll + 'toolbar=' + tool + ',location=0,directories=0,status=0,menubar=0,resizable=0,status=no');
    
    
   return false;
}