function form_initialiser()
   {
    var action_url="/clickthru/click.cgi";

     document.write("<form name=BannerForm method=post action='" + action_url + "'>");
     document.write("<input type=hidden name=banner_name>");
     document.write("<input type=hidden name=url>");
     document.write("</form>");     
   }

   function form_submit(banner_name,url)
   {
      document.BannerForm.banner_name.value=banner_name;
      document.BannerForm.url.value = url;
      document.BannerForm.target="new";
      document.BannerForm.submit();    
   }