Extract menu items from option tags and alert as gient csv line

menuextractor.js

// Extract menu items from option tags and alert as gient csv line
(function () {
    var opts = document.getElementsByTagName('option');
    var i = opts.length;
    var uniq_opts = [];

    for (; i--; ) {
        var opt = opts[i].value;

        var u = uniq_opts.length;
        var have_opt = false;
        for (; u--; ) {
            if (opt === uniq_opts[u]) {
                have_opt = true;
            }
        }
        if (have_opt !== true) uniq_opts.push(opt);
    }
    alert(uniq_opts.join(','));
    // console.log(uniq_opts);
})();