naviImgNorm = new Image();
naviImgNorm.src = "images/buttons/knopf.gif";
naviImgMaus = new Image();
naviImgMaus.src = "images/buttons/knopfsw.gif";

function imgNorm(imgName) {
	document.images[imgName].src = naviImgNorm.src;
	if (! 0) self.status = '';
}

function imgMaus(imgName, descript) {
	document.images[imgName].src = naviImgMaus.src;
	if (! 0) self.status = descript;
}