drupal.arg.js

/**
 * Adds method arg to the Drupal object for grabbing url args
 *
 * @author Aaron Klump, In the Loft Studios, LLC
 * @see http://www.intheloftstudios.com
 * @see http://gist.github.com/3078482
 *
 * For use in a theme or module add the following to your .info file
 * @code
 * scripts[] = [path to js dir]/drupal.arg.js
 * @endcode
 *
 */
(function( $ ) {
  /**
   * JS equivalent of arg()
   *
   * @param index
   * @param path
   *
   * @return array, string or false
   */
  Drupal.arg = Drupal.arg || function (index, path) {
    if (path == null) {
      path = location.pathname;
    }
    if (path.substr(0, 1) == '/') {
      path = path.substr(1);
    }
    path = path.split('?');
    var args = path[0].split('/');
    if (index == null) {
      return args;
    }
    if (args[index]) {
      return args[index];
    }
    return false;
  };
})( jQuery );