function switchLoginOn() {

  // Login einschalten
  document.getElementById('sidebar_content').style.display = "none";
  document.getElementById('sidebar_content').style.visibility = "hidden";

  document.getElementById('sidebar_login').style.display = "block";
  document.getElementById('sidebar_login').style.visibility = "visible";
}


function switchLoginOff() {
  // Login ausschalten
  document.getElementById('sidebar_login').style.display = "none";
  document.getElementById('sidebar_login').style.visibility = "hidden";

  document.getElementById('sidebar_content').style.display = "block";
  document.getElementById('sidebar_content').style.visibility = "visible";
}


function initLogin(state) {
  if (state==1) {
    switchLoginOn();
  } else {
    switchLoginOff();
  } 
}


function switchLogin() {
  if (document.getElementById('sidebar_login').style.display == "none") {
    switchLoginOn();
  } else {
    switchLoginOff();
  }
}