function jsDoImg2(imgname, img1, img2) {
	var currimg = jsNopath(document.images[imgname].src);
	var newimg;
	if(currimg == jsNopath(img1))
		newimg = img2;
	else if(currimg == jsNopath(img2))
		newimg = img1;
	else
		alert(currimg);

	document.images[imgname].src = newimg;
    return false;
}