/* MouseOver Navigation */
function changeImg(imgName,change) {
	if (document.images) {
		if (change==1) imgShow = eval(imgName + "_on.src");
		if (change==0) imgShow = eval(imgName + "_off.src");
		if (imgShow) {
			document[imgName].src = imgShow;
		}
	}
}

// oeffnet Popup
function openPopup(URL,W,H,X,Y) {
	var URL,W,H,X,Y;
	if (!W) { W=520; }
	if (!H) { H=460; }
	if (!X) { X=screen.width/2-(W/2); }
	if (!Y) { Y=screen.height/2-(H/2)-20; }
	properties = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,";
	properties += "width="+W+",height="+H+",left="+X+",top="+Y;
	popwin=window.open(URL,"popup",properties);
}