var doba='den';
function zmena(doba){

	if ((document.getElementById('logo').className == 'logonoc' && doba == 'den') ||
		(document.getElementById('logo').className == 'logo' && doba == 'noc')) {
		$('.slideshow-den, .slideshow-noc').toggle();
	}

  if(doba=='noc'){
    document.getElementById('logo').className='logonoc';
    document.getElementById('obsah').className='obsahnoc';
    document.getElementById('prepinani').className='prepinaninoc';
    document.getElementById('body').style.background = '#567996';
    document.getElementById('rada_5').className='rada_5_noc';
    document.getElementById('rada_4').className='rada_4_noc';
    document.getElementById('rada_3').className='rada_3_noc';
    document.getElementById('rada_2').className='rada_2_noc';
    document.getElementById('rada_1').className='rada_1_noc';
    document.getElementById('strom_vzadu').className='strom_vzadu_noc';
    document.getElementById('zadni_lampa').className='zadni_lampa_noc';
//    document.getElementById('billboard').className='billboard_noc';
    document.getElementById('strom_vpredu').className='strom_vpredu_noc';
    document.getElementById('predni_lampa').className='predni_lampa_noc';
    if(document.getElementById('xsluzbyx')){
      document.getElementById('xsluzbyx').className='sluzbynoc';
    }
  }else{
    document.getElementById('logo').className='logo';
    document.getElementById('obsah').className='obsah';
    document.getElementById('prepinani').className='prepinani';
    document.getElementById('body').style.background = '#D4E0E9';
    document.getElementById('rada_5').className='rada_5';
    document.getElementById('rada_4').className='rada_4';
    document.getElementById('rada_3').className='rada_3';
    document.getElementById('rada_2').className='rada_2';
    document.getElementById('rada_1').className='rada_1';
    document.getElementById('strom_vzadu').className='strom_vzadu';
    document.getElementById('zadni_lampa').className='zadni_lampa';
//    document.getElementById('billboard').className='billboard';
    document.getElementById('strom_vpredu').className='strom_vpredu';
    document.getElementById('predni_lampa').className='predni_lampa';
    if(document.getElementById('xsluzbyx')){
      document.getElementById('xsluzbyx').className='sluzby';
    }
  }
  
  return false;
}

$(document).ready(function() {
  $('.slideshow-den, .slideshow-noc').cycle({
    fx: 'fade',
    timeout: 5000
  });
});