docs: function() {
  
          // layers list div
          this.layersDiv = document.createElement("div");
          this.layersDiv.id = this.id + "_layersDiv";
          OpenLayers.Element.addClass(this.layersDiv, "layersDiv");
  
          this.baseLbl = document.createElement("div");
          this.baseLbl.innerHTML = OpenLayers.i18n("Base Layer");
          OpenLayers.Element.addClass(this.baseLbl, "baseLbl");
  
          this.baseLayersDiv = document.createElement("div");
          OpenLayers.Element.addClass(this.baseLayersDiv, "baseLayersDiv");
  
          this.dataLbl = document.createElement("div");
          this.dataLbl.innerHTML = OpenLayers.i18n("Overlays");
          OpenLayers.Element.addClass(this.dataLbl, "dataLbl");
  
          this.dataLayersDiv = document.createElement("div");
          OpenLayers.Element.addClass(this.dataLayersDiv, "dataLayersDiv");
  
          if (this.ascending) {
              this.layersDiv.appendChild(this.baseLbl);
              this.layersDiv.appendChild(this.baseLayersDiv);
              this.layersDiv.appendChild(this.dataLbl);
              this.layersDiv.appendChild(this.dataLayersDiv);
          } else {
              this.layersDiv.appendChild(this.dataLbl);
              this.layersDiv.appendChild(this.dataLayersDiv);
              this.layersDiv.appendChild(this.baseLbl);
              this.layersDiv.appendChild(this.baseLayersDiv);
          }
  
          this.div.appendChild(this.layersDiv);
  
          // maximize button div
          var img = OpenLayers.Util.getImageLocation('layer-switcher-maximize.png');
          this.maximizeDiv = OpenLayers.Util.createAlphaImageDiv(
                                      "OpenLayers_Control_MaximizeDiv",
                                      null,
                                      null,
                                      img,
                                      "absolute");
          OpenLayers.Element.addClass(this.maximizeDiv, "maximizeDiv olButton");
          this.maximizeDiv.style.display = "none";
  
          this.div.appendChild(this.maximizeDiv);
  
          // minimize button div
          var img = OpenLayers.Util.getImageLocation('layer-switcher-minimize.png');
          this.minimizeDiv = OpenLayers.Util.createAlphaImageDiv(
                                      "OpenLayers_Control_MinimizeDiv",
                                      null,
                                      null,
                                      img,
                                      "absolute");
          OpenLayers.Element.addClass(this.minimizeDiv, "minimizeDiv olButton");
          this.minimizeDiv.style.display = "none";
  
          this.div.appendChild(this.minimizeDiv);
      }