function loadTypeahead() {
    if ($('i.fa.fa-spin.fa-spinner.input-loader').length > 0) $('i.fa.fa-spin.fa-spinner.input-loader').remove();

    var isFocus = false;

    if ($('#key').prop('focus')) isFocus = true;

    var normalize = function(str) {
        // Elimina tildes y convierte a minúsculas
        return str.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
    };

    var queryTokenizer = function(q) {
        var normalized = normalize(q);
        return Bloodhound.tokenizers.whitespace(normalized);
    };

    var datumTokenizer = function(datum) {
        var normalized = normalize(datum.name);
        return Bloodhound.tokenizers.whitespace(normalized);
    };

    var dataSource = new Bloodhound({
        datumTokenizer: datumTokenizer,
        queryTokenizer: queryTokenizer,
        prefetch: '/uploads/pullman/json/lists.json',
        limit: 6,
    });

    dataSource.clearPrefetchCache();
    dataSource.initialize();

    $(".typeahead[name='key']").typeahead({
        hint: true,
        highlight: true
    }, {
        name: 'search-source',
        source: dataSource,
        display: 'name',
        limit: 6,
        templates: {
            pending: [
                '<div class="empty-message">',
                '<i class="fa fa-spinner fa-3x fa-spin"></i>',
                '</div>'
            ].join('\n'),
            empty: [
                '<div class="empty-message">',
                'No se ha encontrado algo parecido',
                '</div>'
            ].join('\n'),
            suggestion: function(data) {
                return "<div>" + data.name + " - <strong>" + (data.type ? (data.type == 'category' ? 'Categoría' : (data.type == 'make' ? 'Marca' : (data.type == 'tag' ? 'Etiqueta' : 'Producto'))) : 'Producto') + "</strong></div>";
            }
        }
    });

    $('.typeahead').bind('typeahead:select', function(ev, suggestion) {
        $('#key').prop('readonly', true);
        if (suggestion.color != 'undefined' && suggestion.color != 0)
            window.location = suggestion.url + "#" + suggestion.color;
        else
            window.location = suggestion.url;
    });

    if (isFocus) $('#key').focus();
}