code: function (markerUrl, markerWidth, markerHeight) {
  			this.writeDebug('markerImage',arguments);
  			var markerImg;
  
  			// User defined marker dimensions
  			if (typeof markerWidth !== 'undefined' && typeof markerHeight !== 'undefined') {
  				markerImg = {
  					url: markerUrl,
  					size: new google.maps.Size(markerWidth, markerHeight),
  					scaledSize: new google.maps.Size(markerWidth, markerHeight)
  				};
  			}
  			// Default marker dimensions: 32px x 32px
  			else {
  				markerImg = {
  					url: markerUrl,
  					size: new google.maps.Size(32, 32),
  					scaledSize: new google.maps.Size(32, 32)
  				};
  			}
  
  			return markerImg;
  		}
docs: Marker image setup
  
  @param markerUrl {string} path to marker image
  @param markerWidth {number} width of marker
  @param markerHeight {number} height of marker
  @returns {Object} Google Maps icon object