<!--

if (document.images) {
laoff = new Image ();
laoff.src = "images/la_08.gif";
laon = new Image ();
laon.src = "images/la_08_on.gif";

choff = new Image ();
choff.src = "images/ch_03.gif";
chon = new Image ();
chon.src = "images/ch_03_on.gif";

nyoff = new Image ();
nyoff.src = "images/ny_06.gif";
nyon = new Image ();
nyon.src = "images/ny_06_on.gif";



}

function rollon(imgName)
 {
        if (document.images) {
        document[imgName].src = eval(imgName + "on.src");
        }
 }

function rolloff(imgName)
 {
        if (document.images) {
        document[imgName].src = eval(imgName + "off.src");
        }
 }
// -->