activateMenu = function(nav) {

    /* currentStyle restricts the Javascript to IE only */
	if (document.all && document.getElementById(nav).currentStyle) {
        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";
                }
            }
        }
    }
}

externalLinks = function()
{
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++)
 {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank";
 }
}
window.onload= function(){
    externalLinks();
    /* pass the function the id of the top level UL */
    /* remove one, when only using one menu */
    activateMenu('mmenu');
}