document.write('<center>');
    document.write('<a href=\"' + url + '\" target=\"_top\">');
    document.write('<img src=\"' + banner + '\" width=')
    document.write(width + ' height=' + height + ' ');
    document.write('alt=\"' + alt + '\" border=0><br>');
    document.write('</a>');
    document.write('</center>');