function foldNav(obj){
	if (is_ignorable( obj ) )
		obj = obj.parentNode
	if ( obj.className.substr(obj.className.length-1, 1) == "R" ) {
		obj.className = obj.className.substr(0, obj.className.length-1);
		if (node_after(obj.parentNode).id.indexOf("_container")){
			node_after(obj.parentNode).style.display = "none";
		}
	} else {
		obj.className += "R";
		if (node_after(obj.parentNode).id.indexOf("_container")){
			node_after(obj.parentNode).style.display = "block";
		}
	}
}

function setNav(navID){
	refLayer = document.getElementById(navID);
	if (refLayer.firstChild.className.substr(refLayer.firstChild.className.length-1, 1) != "R"){
		refLayer.firstChild.className += "R";
	}
	if ( refLayer.parentNode.id.indexOf("_container") > -1 ){
		refLayer.parentNode.style.display = "block";
		
		var prevSib = node_before(refLayer.parentNode);
		
		if (prevSib.firstChild.className.substr(prevSib.firstChild.className.length-1, 1) != "R"){
			prevSib.firstChild.className += "R";
		}
		foldNav(refLayer.parentNode.firstChild, 1);
	}
	if (refLayer.parentNode.parentNode.id != "dvContent"){
		setNav(node_before(refLayer.parentNode).id);
	}
}

picMeta1on=new Image(); picMeta1on.src="images/meta/homeR.gif";
picMeta1off=new Image(); picMeta1off.src="images/meta/home.gif";
picMeta2on=new Image(); picMeta2on.src="images/meta/kontaktR.gif";
picMeta2off=new Image(); picMeta2off.src="images/meta/kontakt.gif";
picMeta3on=new Image(); picMeta3on.src="images/meta/sitemapR.gif";
picMeta3off=new Image(); picMeta3off.src="images/meta/sitemap.gif";
picMeta4on=new Image(); picMeta4on.src="images/meta/impressumR.gif";
picMeta4off=new Image(); picMeta4off.src="images/meta/impressum.gif";
picMeta5on=new Image(); picMeta5on.src="images/meta/printR.gif";
picMeta5off=new Image(); picMeta5off.src="images/meta/print.gif";
picMeta6on=new Image(); picMeta6on.src="images/meta/topR.gif";
picMeta6off=new Image(); picMeta6off.src="images/meta/top.gif";
picMeta7on=new Image(); picMeta7on.src="images/meta/backR.gif";
picMeta7off=new Image(); picMeta7off.src="images/meta/back.gif";

function img_act(imgName,obj) {
	if (obj.src) {
		obj.src=eval(imgName+".src");
	} else if (document[obj]) {
		document[obj].src=eval(imgName+".src");
	}
}