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";

}

}

}

}

}

window.onload= function(nav){

/* pass the function the id of the top level UL */

/* remove one, when only using one menu */

activatemenu('nav');

activatemenu('nav2');

} 
