var loaded = new Array();

	function rollLoad (image) {
		if (image
		&& image.src
		&& (null == image.out
		|| typeof(image.out) == typeof(void(0)))) {
			image.out = new Image();
			image.out.src = "bilder/" + image.name + "_i.gif";
			image.over = new Image();
			image.over.src = "bilder/" + image.name + "_a.gif";
			loaded[image.name] = image;
		}
	}


	function rollIn (imgName) {
		image = loaded[imgName];
		if (image) image.src = eval ("image.over.src");
	}

	function rollOut(imgName) {
		image = loaded[imgName];
		if (image) image.src = eval ("image.out.src");
	}