text: function getQueryVariable(variable) {
      var query = window.location.search.substring(1);
      var vars = query.split('&');
      for (var i = 0; i < vars.length; i++) {
          var pair = vars[i].split('=');
          if (decodeURIComponent(pair[0]) == variable) {
              return decodeURIComponent(pair[1].replace(/\+/g,' '));
          }
      }
  
      return undefined;
  }
  