function infomenu () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("infomenu").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projektemenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("buromenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("buroklagenfurt").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("burostjakob").style.visibility="hidden";
}

function projektemenu () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektemenu").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("infomenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("buromenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("infoleistungen").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("buroklagenfurt").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("burostjakob").style.visibility="hidden";
}

function buromenu () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("buromenu").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("infomenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektemenu").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("infoleistungen").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("infoleistungen").style.visibility="hidden";
}

function leistungen () {
  if (document.getElementById)
    document.getElementById("infoleistungen").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
}

function auszeichnungen () {
  if (document.getElementById)
    document.getElementById("infoleistungen").style.visibility="hidden";
}

function projektewohnbauten () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
}

function projekteofb () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
}

function projektegewerbe () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
}

function projektewettbewerbe () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewerke").style.visibility="hidden";
}

function werkver () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("projektewohnbauten").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektegewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projektewettbewerbe").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("projekteofb").style.visibility="hidden";
}

function buroklagenfurt () {

  parent.main.location = "../start.html";

  if (document.getElementById)
    document.getElementById("buroklagenfurt").style.visibility="visible";
  if (document.getElementById)
    document.getElementById("buroweitere").style.visibility="hidden";
}

function buroweitere () {
  if (document.getElementById)
    document.getElementById("buroklagenfurt").style.visibility="hidden";
  if (document.getElementById)
    document.getElementById("buroweitere").style.visibility="visible";
}

function filialen () {
  if (document.getElementById)
    document.getElementById("buroklagenfurt").style.visibility="hidden";
}

function start () {
  parent.menu.location = "menu.html";
  parent.main.location = "../start.html";
}