don't really know why it doesn't work but I would do it like this
on the line you want the menu thingy give it an id, for example nav2
HTML Code:
function montre(id) {
var d = document.getElementById("nav2");
if(id = "News") {
d.innerHtml = "Weekly Band News Monthly News Letter";
} else if(id = "Awards") {
d.innerHtml = "2005-2006 2006-2007 2007-2008";
} and so on
}