function mySearch()
{
    var query = document.search.query.value.toLowerCase();
    var buf = '';
    var res = document.getElementById('searchresults');
    if (query != '') {
        res.style.display = 'block';
        var ele = document.getElementsByTagName('li');
        var len = ele.length;
        for (var i = 0; i < len; i++) {
            if (ele[i].childNodes[0].firstChild) {
                var str = ele[i].childNodes[0].firstChild.nodeValue;
                if (str.toLowerCase().indexOf(query, 0) != -1) {
                    buf += '&#187; <a href="' + ele[i].childNodes[0]['href'] + '">' + str  + '</a><br />';
                }
            }
        }
        if (buf == '') {
            buf = 'No results.';
        }
    }
    if (buf == '') {
        res.style.display = 'none';
    } else {
        res.innerHTML = buf;
    }
}