<!-- Hide from old browsers
var NN3 = false;
image90= new Image();
image90.src = "/_images/nav/about.gif";
image90on = new Image();
image90on.src = "/_images/nav/about_mo.gif";
image91= new Image();
image91.src = "/_images/nav/projects.gif";
image91on = new Image();
image91on.src = "/_images/nav/projects_mo.gif";
image92= new Image();
image92.src = "/_images/nav/properties.gif";
image92on = new Image();
image92on.src = "/_images/nav/properties_mo.gif";
image93= new Image();
image93.src = "/_images/nav/references.gif";
image93on = new Image();
image93on.src = "/_images/nav/references_mo.gif";
image94= new Image();
image94.src = "/_images/nav/home.gif";
image94on = new Image();
image94on.src = "/_images/nav/home_mo.gif";

function on3(name)   {
        document[name].src = eval(name + "on.src");
}
function off3(name)  {
        document[name].src = eval(name + ".src");
}
NN3 = true;

function on(name)  {
        if (NN3) on3(name);
}
function off(name)  {
        if (NN3) off3(name);
}
// -->