function teaser1 () {
  if (document.getElementById)
    document.getElementById("teaser1").style.display = "";
    document.getElementById("teaser2").style.display = "none";
    document.getElementById("teaser3").style.display = "none";
}

function teaser2 () {
  if (document.getElementById)
    document.getElementById("teaser1").style.display = "none";
    document.getElementById("teaser2").style.display = "";
    document.getElementById("teaser3").style.display = "none";
}

function teaser3 () {
  if (document.getElementById)
      document.getElementById("teaser1").style.display = "none";
    document.getElementById("teaser2").style.display = "none";
    document.getElementById("teaser3").style.display = "";
}

function loginda () {
  if (document.getElementById)
    document.getElementById("login_da").style.display = "";
    document.getElementById("login_weg").style.display = "none";
}

function loginweg () {
  if (document.getElementById)
    document.getElementById("login_da").style.display = "none";
    document.getElementById("login_weg").style.display = "";

}
function eingeloggt () {
  if (document.getElementById)
    document.getElementById("login").style.display = "none";
    document.getElementById("logout").style.display = "";

}
function ausgeloggt () {
  if (document.getElementById)
    document.getElementById("logout").style.display = "none";
    document.getElementById("login").style.display = "";

}

function products_short () {
  if (document.getElementById)
    document.getElementById("products_short").style.display = "";
    document.getElementById("products_long").style.display = "none";

}
function products_long () {
  if (document.getElementById)
    document.getElementById("products_long").style.display = "";
    document.getElementById("products_short").style.display = "none";

}