function ImageLoad( theImageName, theOnSrc, theOffSrc) {
	if (document.images) {
	  eval(theImageName + "on = new Image()");
	  eval(theImageName + "off = new Image()");
	  eval(theImageName + "on.src = '" + theOnSrc + "'");
	  eval(theImageName + "off.src = '" + theOffSrc + "'");
	}
}
function ImageOn( theImageName) {
  if (document.images) {
    document.images[theImageName].src = eval(theImageName + "on.src");
  }
}
function ImageOff( theImageName) {
  if (document.images) {
    document.images[theImageName].src = eval(theImageName + "off.src");
  }
}