var img1 = new Image();
img1.src = "images/opener_hort_over.jpg";
var img2 = new Image();
img2.src = "images/opener_aqua_over.jpg";

function iebody() {
    // depending on the !DOCTYPE setting (if there is one), IE behaves differently
    return (document.compatMode != "BackCompat" ? document.documentElement : document.body);
}
function rollit(site, val) {
    if (0 == val) {
        document.getElementById(site).src = "images/opener_" + site + "_on.jpg";
    }
    else if (1 == val) {
        document.getElementById(site).src = "images/opener_" + site + "_over.jpg";
    }
}