// JavaScript Document

function spravaover() {
  document.getElementById('spravabut').className='spravablue';
  document.getElementById('sprava').style.visibility='visible';
}
function spravaout() {
  document.getElementById('spravabut').className='spravagray';
  document.getElementById('sprava').style.visibility='hidden';
}

function historieover() {
  document.getElementById('historiebut').className='historieblue';
  document.getElementById('historie').style.visibility='visible';
}
function historieout() {
  document.getElementById('historiebut').className='historiegray';
  document.getElementById('historie').style.visibility='hidden';
}

function soucasnostover() {
  document.getElementById('soucasnostbut').className='soucasnostblue';
  document.getElementById('soucasnost').style.visibility='visible';
}
function soucasnostout() {
  document.getElementById('soucasnostbut').className='soucasnostgray';
  document.getElementById('soucasnost').style.visibility='hidden';
}

function sluzbyover() {
  document.getElementById('sluzbybut').className='sluzbyblue';
  document.getElementById('sluzby').style.visibility='visible';
}
function sluzbyout() {
  document.getElementById('sluzbybut').className='sluzbygray';
  document.getElementById('sluzby').style.visibility='hidden';
}

function kulturaover() {
  document.getElementById('kulturabut').className='kulturablue';
  document.getElementById('kultura').style.visibility='visible';
}
function kulturaout() {
  document.getElementById('kulturabut').className='kulturagray';
  document.getElementById('kultura').style.visibility='hidden';
}

function galerieover() {
  document.getElementById('galeriebut').className='galerieblue';
  document.getElementById('galerie').style.visibility='visible';
}
function galerieout() {
  document.getElementById('galeriebut').className='galeriegray';
  document.getElementById('galerie').style.visibility='hidden';
}

function planekover() {
  document.getElementById('planekbut').className='planekblue';
  document.getElementById('planek').style.visibility='visible';
}
function planekout() {
  document.getElementById('planekbut').className='planekgray';
  document.getElementById('planek').style.visibility='hidden';
}

function knihaover() {
  document.getElementById('knihabut').className='knihablue';
  document.getElementById('kniha').style.visibility='visible';
}
function knihaout() {
  document.getElementById('knihabut').className='knihagray';
  document.getElementById('kniha').style.visibility='hidden';
}

function submenuover(a) {
  a.style.backgroundColor='#009ADE';
}
function submenuout(a) {
  a.style.backgroundColor='#0079C6';
}