activateMenu = function(nav) {
	    if(document.all && document.getElementById(nav).currentStyle){
	        // only MSIE supports document.all
            var navroot = document.getElementById(nav);

            /* Get all the list items within the menu */
            var lis=navroot.getElementsByTagName("LI");
            for(i=0;i<lis.length;i++){
                /* If the LI has another menu level */
                if(lis[i].lastChild.tagName=="UL"){
                    /* assign the function to the LI */
                    lis[i].onmouseover=function(){
                        /* display the inner menu */
                        this.lastChild.style.display="block";
                    }
                    lis[i].onmouseout=function(){
                        this.lastChild.style.display="none";
                    }
                }
            }
        }
    }