<!--
//on_off
function chgImg(imgname, objekt){
window.document.images[imgname].src = objekt.src;
}

//ebenen on_off
function showLayer(x){
if (document.layers) 
	parent.main.document.layers[x].visibility="show";
else
   	parent.main.document.all[x].style.visibility="visible";
}

function hideLayer(x){
if (document.layers) 
   	parent.main.document.layers[x].visibility="hide";
else
   	parent.main.document.all[x].style.visibility="hidden";
}

//2 frames gleichzeitig aendern
function chgUrl(url_1,url_2){  
parent.nav_oben.location.href=url_1;
parent.main.location.href=url_2;
}

//-->