function popup(sub_url){
sw_popup=window.open(sub_url,'map','toolbar=no,resizable=no,menubar=no,directories=no,status=no,scrollbars=no,location=no,width=600,height=650');
if ((navigator.appName.charAt(0) == "N" && navigator.appVersion.charAt(0) >= 3) || (navigator.appName.charAt(0) == "M" && navigator.appVersion.charAt(0) >= 4)){
sw_popup.focus();
}
}