function zuuu()
{
  document.getElementById("layeron").style.display = "none";
}

function auuuf()
{
  document.getElementById("layeron").style.display = "block";
}

function binnetda()
{
  document.getElementById("loginform").style.display = "none";
}

function wiederda()
{
  document.getElementById("loginform").style.display = "block";
}