function ChangeLang() {
    var suggestions = new Bloodhound({
        datumTokenizer: Bloodhound.tokenizers.whitespace,
        queryTokenizer: Bloodhound.tokenizers.whitespace,
        prefetch: 'media/data/suggestions.json'
    });

    if ( $('#qlang').val() === 'en' ) {
        $('#q').typeahead({
            hint: true,
            highlight: true,
            minLength: 2
        }, {
            name: 'suggestions',
            limit: 10,
            source: suggestions
        }).on('typeahead:selected typeahead:autocompleted', function(e, datum) {
            DoSearch();
        }).on('keyup', function(e, datum) {
            if (e.which == 13) {
                //$(".tt-suggestion:first-child").trigger('click');
                $(".tt-menu").hide();
                $('.tt-hint').css("color", "#fff");
            }
            else {
                $('.tt-hint').css("color", "#bbb");
            }
        });
    }
    else {
        $('#q').typeahead('destroy');
    }

}

ChangeLang();