function show1() {
if(document.getElementById) document.getElementById("ve1").style.display = "inline";
if(document.getElementById) document.getElementById("da1").style.display = "none";
if(document.getElementById) document.getElementById("nd1").style.display = "inline";   
}

function weg1() {
if(document.getElementById) document.getElementById("ve1").style.display = "none";
if(document.getElementById) document.getElementById("da1").style.display = "inline";
if(document.getElementById) document.getElementById("nd1").style.display = "none";
}

function show2() {
if(document.getElementById)document.getElementById("ve2").style.display = "inline";
if(document.getElementById) document.getElementById("da2").style.display = "none";
if(document.getElementById) document.getElementById("nd2").style.display = "inline";   
}

function weg2() {
if(document.getElementById) document.getElementById("ve2").style.display = "none";
if(document.getElementById) document.getElementById("da2").style.display = "inline";
if(document.getElementById) document.getElementById("nd2").style.display = "none";
}

function show3() {
if(document.getElementById)document.getElementById("ve3").style.display = "inline";
if(document.getElementById) document.getElementById("da3").style.display = "none";
if(document.getElementById) document.getElementById("nd3").style.display = "inline";   
}

function weg3() {
if(document.getElementById) document.getElementById("ve3").style.display = "none";
if(document.getElementById) document.getElementById("da3").style.display = "inline";
if(document.getElementById) document.getElementById("nd3").style.display = "none";
}