OpenLayers.Util Utility class. Stores a bunch of methods and settings that don't fit anywhere else. * Options OpenLayers.Util.onImageLoadErrorColor -- A string to set img.style.backgroundColor to if the onerror event fires for the image (useful for 500 errors from WMS, for example). OpenLayers.ImgPath -- A string to be used as the base for images for controls and the like. Should end with '/'.