var submenu_hide = true;
      
function ShowSubmenu(){
  submenu_hide = false;
  document.getElementById("vodni-zdroje-submenu").style.display = "inline";
}

function CheckAndHideSubmenu(){
  if ( submenu_hide )
    document.getElementById("vodni-zdroje-submenu").style.display = "none";
}

function HideSubmenu(){
  submenu_hide = true;
  setTimeout("CheckAndHideSubmenu()", 50);
}

function GoogleTracker(){
  var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
  document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));

  try {
  var pageTracker = _gat._getTracker("UA-13234424-1");
  pageTracker._trackPageview();
  } catch(err) {}
}