[DRUPAL] ul to select for mobile device

gistfile1.txt

Drupal.theme.ulToSelect = function(selector){
    $(selector).once('ulToSelect', function(){
      var ul = $(this),
          select = '<select id="select"/>';

      ul.after(select);

      ul.find('li').each(function(){
        var text = $(this).text(),
            link = $(this).find('a').attr('href');

        $('#select').append('<option data-link="'+link+'">'+text+'</option>');
      });

      
      $('#select').live('change', function(){
        var link = $(this).find('option:selected').data('link');
        window.location = link;
      });

      ul.hide();

    });
  }