var currentmenu = '';

window.onload = function() {
  $$('#nav a').each(function(el){
    if(typeof(el.parentNode)!='undefined')
    {
      if(el.parentNode.className.indexOf('active')>-1)
      {
        currentmenu = el.parentNode.className;
        el.parentNode.parentNode.className = currentmenu;
      }
    }
    
    el.observe('mouseover', function() {
      el.parentNode.parentNode.className = el.parentNode.className;
    }.bind(this));
    el.observe('mouseout', function() {
      el.parentNode.parentNode.className = currentmenu;
    }.bind(this));
  }.bind(this));
}