// FireFox
$("embed").attr("wmode", "opaque");

$(document).ready(function() {
    // IE
    var embedTag;
    $("embed").each(function(i) {
        embedTag = $(this).attr("outerHTML");
        if ((embedTag != null) && (embedTag.length > 0)) {
            embedTag = embedTag.replace(/embed /gi, "embed wmode=\"opaque\" ");
            $(this).attr("outerHTML", embedTag);
        }
        // This "else" was added
        else {
            $(this).wrap("<div></div>");
        }
    });
});