function popup_img (img,title,w,h) {
var win = open("", "displayWindow", "width=" + w + ",height=" + h + ",status=no,toolbar=no,menubar=no,scrollbars=no,resizable=no");
win.document.open();
win.document.writeln('' + title + '\n');
win.document.writeln('
\n');
win.document.writeln('');
win.document.close();
}