function popupjpeg (imgname, imgwidth, imgheight) {
winId = window.open("about:blank","","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=no,resizable=no,width="+(imgwidth+24)+",height="+(imgheight+90)+",screenX=0,screenY=0");
winId.document.write(''+imgname+'');
winId.document.write('