gistfile1.txt

    registerPane: function(index, elem) {
      var $elem = $(elem);
      var name = $elem.data('pane');

      this.panes[name] = {
        url: $elem.prop('href'),
        pane: $('#settings_'+name),
        link: $elem,
      };
      this.panes.length++;

      $elem.on('click', $.proxy(this.confirmIfDirty, this));
    },

    confirmIfDirty: function() {
      if(this.panes.active.dirty) {
        var check = confirm('are you sure?')
        if(!check) {
          return false
        }
      }
    }