// obsluga menu glownego
function menuMain(pSrc) {
  var path = pSrc.src;
  var tab = path.split('/');
  var tmp = tab[tab.length - 1];
  var state = '';

  tab = tmp.split('.');
  path = tab[tab.length - 2];

  state = path.charAt(path.length - 1);
  state == '0' ? path = path.substring(0, path.length - 1) + '1' : path = path.substring(0, path.length - 1) + '0';
  path += '.' + tab[tab.length - 1];
  path = 'img/' + path;

  pSrc.src = path;
}
//