function showGlobalListMenu() {
  var gmc = document.getElementById('global_menu_catalog');
  gmc.style.display = 'block';
  gmc.style.zIndex  = '999';
  for(var i = 0; i < gmc.childNodes.length; i++) {
    if(gmc.childNodes[i].nodeName.toUpperCase() == "LI") {
      gmc.childNodes[i].childNodes[0].style.color      = '#FFFFFF';
      gmc.childNodes[i].childNodes[0].style.background = 'none';
      gmc.childNodes[i].childNodes[0].style.lineHeight = '30px';
      gmc.childNodes[i].childNodes[0].style.textAlign  = 'center';
    }
  }
}

function hiddenGlobalListMenu() {
  var gmc = document.getElementById('global_menu_catalog');
  gmc.style.display = 'none';
}