document.write('<style id="noflickerCSS" type="text/css">'+
'  .sitemap .level3,'+
'x { display: none; }</style>');

// Timeout after 8 seconds and remove the <style> elements - 
// in case some script has thrown an error and js/init.js hasn't finished running
setTimeout(function(c){
    c = document.getElementById('noflickerCSS');
    c && c.parentNode.removeChild(c);
  }, 8000);