function popup(){
        var wo=window.open("","popup","toolbar=no,menubar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,width=700");
         if ((navigator.appName.charAt(0)=="M")&&(parseInt(navigator.appVersion.substring(0, 3))) <= 3){return false}
        else{wo.focus()};
}