code: function(containerID) {
          if (!this.supported()) { 
              return; 
          }
          if (!document.namespaces.olv) {
              document.namespaces.add("olv", this.xmlns);
              var style = document.createStyleSheet();
              var shapes = ['shape','rect', 'oval', 'fill', 'stroke', 'imagedata', 'group','textbox']; 
              for (var i = 0, len = shapes.length; i < len; i++) {
  
                  style.addRule('olv\\:' + shapes[i], "behavior: url(#default#VML); " +
                                "position: absolute; display: inline-block;");
              }                  
          }
          
          OpenLayers.Renderer.Elements.prototype.initialize.apply(this, 
                                                                  arguments);
      }
docs: Constructor: OpenLayers.Renderer.VML
  Create a new VML renderer.
  
  Parameters:
  containerID - {String} The id for the element that contains the renderer