ssbe.util.js

  /*
   * Correct field names and ids (and for) so forms work and labels
   * line up. Replaces names like:
   *
   *   post[author][42][name]
   *   post[author][][name]
   *
   * with a timestamp, so that there's no collisions.
   *
   *   post[author][1283896010739][name]
   *
   * does the same with id attributes, of the form
   *
   *   post_author_42_name
   *
   */
  function fixFieldNames(fields, prefix) {
    esc_prefix = XRegExp.escape(prefix);
    var ts = new Date();
    ts = ts.getTime();

    var old_name = XRegExp("^" + esc_prefix + "\\[\\d*\\](.*)$");
    var new_name = prefix + "[" + ts + "]$1";

    var id_prefix = name2id(prefix);
    var old_id = XRegExp("^" + id_prefix + "_\\d*(.*)$");
    var new_id = id_prefix + "_" + ts + "$1";

    $(fields).find('label, input, select, textarea').each(function(i, el) {
      $el = $(el);
      if($el.attr('for') && $el.attr('for').match(old_id)) {
        $el.attr('for', $el.attr('for').replace(old_id, new_id));
      }
      if ($el.attr('name') && $el.attr('name').match(old_name)) {
        $el.attr('name', $el.attr('name').replace(old_name, new_name));
      }
      if ($el.attr('id') && $el.attr('id').match(old_id)) {
        $el.attr('id', $el.attr('id').replace(old_id, new_id));
      }
    });
  }

  /*
   * Changes values and selected of all form elements to empty
   */
  function resetFields(fields) {
    $(fields).find('input,select,textarea').each(function() {
        var t = this.type, tag = this.tagName.toLowerCase();
        if (t == 'text' || t == 'password' || tag == 'textarea')
          this.value = '';
        else if (t == 'checkbox' || t == 'radio')
          this.checked = false;
        else if (tag == 'select')
          this.selectedIndex = 0;
    });
  }