<!--

if (document.images) {
image1on = new Image();
image1on.src = "nav/ho1.gif";

image2on = new Image();
image2on.src = "nav/ma1.gif";

image3on = new Image();
image3on.src = "nav/ch1.gif";

image4on = new Image();
image4on.src = "nav/ph1.gif";

image5on = new Image();
image5on.src = "nav/hi1.gif";

image6on = new Image();
image6on.src = "nav/bo1.gif";

image7on = new Image();
image7on.src = "nav/fa1.gif";

image8on = new Image();
image8on.src = "nav/lo1.gif";

image9on = new Image();
image9on.src = "nav/ge1.gif";

image10on = new Image();
image10on.src = "nav/cl1.gif";

image11on = new Image();
image11on.src = "nav/tc1.gif";

image12on = new Image();
image12on.src = "nav/st1.gif";


image1off = new Image();
image1off.src = "nav/ho.gif";

image2off = new Image();
image2off.src = "nav/ma.gif";

image3off = new Image();
image3off.src = "nav/ch.gif";

image4off = new Image();
image4off.src = "nav/ph.gif";

image5off = new Image();
image5off.src = "nav/hi.gif";

image6off = new Image();
image6off.src = "nav/bo.gif";

image7off = new Image();
image7off.src = "nav/fa.gif";

image8off = new Image();
image8off.src = "nav/lo.gif";

image9off = new Image();
image9off.src = "nav/ge.gif";

image10off = new Image();
image10off.src = "nav/cl.gif";

image11off = new Image();
image11off.src = "nav/tc.gif";

image12off = new Image();
image12off.src = "nav/st.gif";
}

function turnOn(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "on.src");
}
}

function turnOff(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "off.src");
}
}