function show(element){
	element.className = "nav_list_item_hover";
}
function menuHide(element){
	element.className =  "element";
	if(element.nextSibling != null){
		element.nextSibling.src = "/fileadmin/images/template/mainnavigation_border.jpg";
	}
}
function menuShow(element){
	element.className = "nav_list_item_hover";
	if(element.nextSibling != null){
		element.nextSibling.src = "/fileadmin/images/template/mainnavigation_border_cur.jpg";
	}
}