code: function (worldWindow, layersPanel, timeSeriesPlayer) {
          var thisServersPanel = this;
  
          this.wwd = worldWindow;
          this.layersPanel = layersPanel;
          this.timeSeriesPlayer = timeSeriesPlayer;
  
          this.idCounter = 1;
  
          this.legends = {};
  
          $("#addServerBox").find("button").on("click", function (e) {
              thisServersPanel.onAddServerButton(e);
          });
  
          $("#addServerText").on("keypress", function (e) {
              thisServersPanel.onAddServerTextKeyPress($(this), e);
          });
      }
docs: Constructs a servers panel.
  @alias ServersPanel
  @constructor
  @classdesc Provides a list of collapsible panels that indicate the layers associated with a WMS or other
  image server. Currently only WMS is supported. The user can select a server's layers and they will be added to
  the WorldWindow's layer list.
  @param {WorldWindow} worldWindow The WorldWindow to associate this layers panel with.
  @param {LayersPanel} layersPanel The layers panel managing the specified WorldWindows layer list.