<!-- // navicon.js navigation rollover script //
 if (document.images) {    

    navOn = new Image();
    navOn.src = "./images/pbfnav.gif";

    navOf = new Image();
    navOf.src = "./images/pbfclr.gif";
}

//rollover function on
function imgOn (imgName) {
        if (document.images) {
          document[imgName].src = navOn.src;
        }
}

//rollover function off
function imgOf (imgName) {
        if (document.images) {
          document[imgName].src = navOf.src;
        }
}
//-->