function navReload() {
	var actualContent = top.frames['inhalt'].document.location.href;
	var start = actualContent.indexOf('de/');
	var stop =  actualContent.indexOf('.html');
	var actualSection = actualContent.slice(start+3,stop-3);
	top.frames['nav'].document.images[actualSection].src = "grfx/" + actualSection + "_" + lang + "_2.gif";
	setSection(actualSection);
}

function setSection(where) {
	var i = 0;
	for (i = 0; i <= (sectionS.length-1); i++) {
		if (sectionS[i] != where) {
			parent.frames['nav'].document.images[sectionS[i]].src = "grfx/" + sectionS[i] + "_" + lang + "_1.gif";
		}
	}
	section = where;
	img_on(where);
}
 
function img_on(imgname) {
	if (top.frames.length != 0) {
			parent.frames['nav'].document.images[imgname].src = "grfx/" + imgname + "_" + lang + "_2.gif";
	}
	else document.images[imgname].src = "grfx/" + imgname + "_2.gif";
}

function img_off(imgname) {
	if (top.frames.length != 0) {
		if (imgname != section) {
			parent.frames['nav'].document.images[imgname].src = "grfx/" + imgname + "_" + lang + "_1.gif";
		}
	}
	else document.images[imgname].src = "grfx/" + imgname + "_1.gif";
}

function notWOFrameset() {
	if (parent.frames.length == 0) {
		top.document.location.href = "index.html";
	} 
}