function navOver(obj)
{
    if(obj.className=="menuItemSelected") return;
    obj.className = "menuItemOver";
}

function navOut(obj)
{
    if(obj.className=="menuItemSelected") return;
    obj.className = "menuItem";
}

function navSelect(obj)
{
    obj.className = "menuItemSelected";
}

function setClassName(id, className)
{
    var obj = document.getElementById(id);
    obj.className = className;
}