function bind(el, url) {
   var el_name = el.name;
   for(i = el_name.length - 1; i >= 0; i--) {
      if(el_name.charAt(i) < "0" || el_name.charAt(i) > "9") break;
   }
   el_name = el_name.substr(0, i + 1);
//   alert(el_name + "; " + i + "; len: " + el.name.length);
   window.location = url + "&" + el_name + "=" + el.value;
   return true;
}