function setOpacity(obj, opacity) {
        opacity = (opacity == 100)?99.999:opacity;
        // IE/Win
        obj.style.filter = "alpha(opacity:"+opacity+")";
        // Safari<1.2, Konqueror
        obj.style.KHTMLOpacity = opacity/100;
        // Older Mozilla and Firefox
        obj.style.MozOpacity = opacity/100;
        // Safari 1.2, newer Firefox and Mozilla, CSS3
        obj.style.opacity = opacity/100;
}