function popup(popup_url,name,width,height) {
        size = 'width=' + width + ',height=' + height;
        newwindow = window.open(popup_url,name, 'resize=no, menubar=no, location=no, toolbar=no, status=no, scrollbars=yes, directories=no,' + size);           
        window.open(popup_url,name, 'resize=no, menubar=no, location=no, toolbar=no, status=no, scrollbars=auto, directories=no' + size);
}