code: function(px) {
          OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, 
                                              null, 
                                              null, 
                                              this.size, 
                                              this.url, 
                                              "absolute");
          this.moveTo(px);
          return this.imageDiv;
      }
docs: Method: draw
  Move the div to the given pixel.
  
  Parameters:
  px - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an
  object with a 'x' and 'y' properties.
  
  Returns:
  {DOMElement} A new DOM Image of this icon set at the location passed-in