function swapimage(url){
	document.mitte.src=url;
};
function swapparent(url){
	parent.location.href=url;
}
function swapparent(url){
	parent.location.href=url;
}
function popup(url) {
	meinfenster=window.open(url, "Fenster2", "width=600, height=800, scrollbars, menubar");
	meinfenster.focus;
}