function popuptopic(title,topic,w,h,scrollbars){
window.open('popup.aspx?title=' + title + '&topic=' + topic,'Popup45537','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=' + scrollbars + ',resizable=no,copyhistory=no,width=' + w + ',height=' + h + ',left=0,top=0');
return (true);
}