* A string specifying which image. If it begins with a number, it is
* taken to be a string specifying the image number. Otherwise, it is
* taken to be the name of an image, as specified in the XML data for the
* A string specifying which image. If it begins with a number, it is
* taken to be a string specifying the image number. Otherwise, it is
* taken to be the name of an image, as specified in the XML data for the