function initMenu() {
       var wrapper = document.getElementById('navleftmenubar');
       for (var i=0; i<wrapper.childNodes.length; i++) {
           var menuItem = wrapper.childNodes[i];
           if (menuItem.tagName == 'LI') {
               menuItem.onmouseover = function() {
                   this.getElementsByTagName('ul')[0].style.display = 'block';
               };
               menuItem.onmouseout = function() {
                   this.getElementsByTagName('ul')[0].style.display = 'none';
               };
           }
       }      }