function quer() { 
 document.getElementById("quer").style.display = "block";
 document.getElementById("hoch").style.display = "none";
 document.getElementById("endlos").style.display = "none";
 document.getElementById("decke").style.display = "none";
}

function hoch() { 
 document.getElementById("quer").style.display = "none";
 document.getElementById("hoch").style.display = "block";
 document.getElementById("endlos").style.display = "none";
 document.getElementById("decke").style.display = "none";
}

function endlos() { 
 document.getElementById("quer").style.display = "none";
 document.getElementById("hoch").style.display = "none";
 document.getElementById("endlos").style.display = "block";
 document.getElementById("decke").style.display = "none";
}

function decke() { 
 document.getElementById("quer").style.display = "none";
 document.getElementById("hoch").style.display = "none";
 document.getElementById("endlos").style.display = "none";
 document.getElementById("decke").style.display = "block";
}