function hoverImage (objImage) {
    var fullPath = objImage.src;
    if (fullPath.indexOf("selected.gif") >= 0) {
      return;
    }
    fullPath = fullPath.replace(".gif", "_over.gif");
	objImage.src = fullPath;
}

function unhoverImage(objImage) {
    var fullPath = objImage.src;
    fullPath = fullPath.replace("_over.gif", ".gif");
	objImage.src = fullPath;
}