<!--
if (document.images) {

img1on = new Image(); // Active images
img1on.src = "images/btn_home_ov.gif";
img2on = new Image();
img2on.src = "images/btn_bio_ov.gif";
img3on = new Image();
img3on.src = "images/btn_pro_ov.gif";
img4on = new Image();
img4on.src = "images/btn_itin_ov.gif";
img5on = new Image();
img5on.src = "images/btn_rec_ov.gif";
img6on = new Image();
img6on.src = "images/btn_edu_ov.gif";
img7on = new Image();
img7on.src = "images/btn_gall_ov.gif";
img8on = new Image();
img8on.src = "images/btn_rev_ov.gif";
img9on = new Image();
img9on.src = "images/btn_cont_ov.gif";

img1off = new Image(); // Inactive images
img1off.src = "images/btn_home_up.gif";
img2off = new Image();
img2off.src = "images/btn_bio_up.gif";
img3off = new Image();
img3off.src = "images/btn_pro_up.gif";
img4off = new Image();
img4off.src = "images/btn_itin_up.gif";
img5off = new Image();
img5off.src = "images/btn_rec_up.gif";
img6off = new Image();
img6off.src = "images/btn_edu_up.gif";
img7off = new Image();
img7off.src = "images/btn_gall_up.gif";
img8off = new Image();
img8off.src = "images/btn_rev_up.gif";
img9off = new Image();
img9off.src = "images/btn_cont_up.gif";
}

function imgOn(imgName) {
if (document.images) {
document[imgName].src = eval(imgName + "on.src"); 
} 
}

function imgOff(imgName) { 
if (document.images) { 
document[imgName].src = eval(imgName + "off.src"); 
} 
}
// -->