shit = 0;
shit = document.all && document.getElementById;

window.onload = function() {
  if (shit) {
    var hrefs, el;
    // Hlavni menu
    hrefs = document.getElementById('hm').getElementsByTagName('a');
    for(i = 0; i < hrefs.length; i++) {
      handleEvents(hrefs.item(i));
    }
    // Jazyky
    hrefs = document.getElementById('lang').getElementsByTagName('a');
    for(i = 0; i < hrefs.length; i++) {
      el = hrefs.item(i).getElementsByTagName('span')[0];
      handleEvents(el);
    }
  }
}

function handleEvents(item) {
  item.onmouseover = function() {
    this.getElementsByTagName('span')[0].style.display = 'block';
  }
  item.onmouseout = function() {
    this.getElementsByTagName('span')[0].style.display = 'none';
  }
}