function setStyleSheet(title) {
    var iLastcss = 0;
    var bFound = false;
    for (var i = 0; i < document.getElementsByTagName("link").length; i++) {
        var a = document.getElementsByTagName("link")[i];
        var b = a.getAttribute("title");
        if (b != null) {
            if (a.getAttribute("rel") == "stylesheet") {
                if (b == title) {
                    a.disabled = false;
                    bFound = true;
                } else {
                    a.disabled = true;
                    iLastcss = i;
                }
            }
        }
    }
    if (!bFound) {
        var a = document.getElementsByTagName("link")[iLastcss];
        a.disabled = false;
    }
}