<!-- Begin
ctl00_image1 = new Image();
ctl00_image1.src = "images/bon_about_en.gif";
ctl00_image2 = new Image();
ctl00_image2.src = "images/bon_prevention_en.gif";
ctl00_image3 = new Image();
ctl00_image3.src = "images/bon_research_en.gif";
ctl00_image4 = new Image();
ctl00_image4.src = "images/bon_support_en.gif";
ctl00_image5 = new Image();
ctl00_image5.src = "images/bon_howhelp_en.gif";
ctl00_image6 = new Image();
ctl00_image6.src = "images/bon_pub_en.gif";
ctl00_image7 = new Image();
ctl00_image7.src = "images/bon_donate_en.gif";
// End -->

/**
 *  Newer Image Rollovers
 */
if (window.addEventListener) {
    window.addEventListener('load', loadImages, false);
} else if (window.attachEvent) {
    window.attachEvent('onload', loadImages);
}

function loadImages(event) {
    var hoverImages;
    if (document.getElementsByClassName) {
        // Most efficient variation
        hoverImages = document.getElementsByClassName('hoverImage');
    } else {
        // Slower, but compatible with older browsers
        hoverImages = [];
        for (var i = 0; i < document.images.length; i++) {
            if (document.images[i].className.match(/\bhoverImage\b/)) {
                hoverImages.push(document.images[i]);
            }
        }
    }
    for (var i = 0; i < hoverImages.length; i++) {
        var img = new Image();
        img.src = hoverImages[i].src.replace(/_off\./, '_on.');
        hoverImages[i].onmouseover = hoverImage;
        hoverImages[i].onmouseout = hoverImage;
    }
}

function hoverImage() {
    var newImg = this.src;
    if (newImg.match(/_off\./)) {
        this.src = newImg.replace(/_off\./, '_on.');
    } else if (newImg.match(/_on\./)) {
        this.src = newImg.replace(/_on\./, '_off.');
    }
}