/* Funktionen Slide Module */
function modul01 () {
  if (document.getElementById)
    document.getElementById("modul01").style.display = "block";
    document.getElementById("modul02").style.display = "none";
    document.getElementById("modul03").style.display = "none";
}

function modul02 () {
  if (document.getElementById)
    document.getElementById("modul01").style.display = "none";
    document.getElementById("modul02").style.display = "block";
    document.getElementById("modul03").style.display = "none";
}

function modul03 () {
  if (document.getElementById)
    document.getElementById("modul01").style.display = "none";
    document.getElementById("modul02").style.display = "none";
    document.getElementById("modul03").style.display = "block";
}