Фильтр товаров (eshop.filter)

<div class="filter-collapse collapse" id="filter-collapse">
    {form method='post'}
    <div class="filter-group">
        [if=price_min_value]
        <div class="filter">
            <h3 class="filter-title">Цена</h3>
            <div class="collapse in">
                <div class="filter-body">
                    <div class="filter-range">
                        <div class="filter-range-fields">
                            <div class="filter-range-row row">
                                <div class="col-xs-6">
                                    <input type="text" name="{price_min_name}" value="{price_min_value}" placeholder="{price_min}" class="form-control">
                                </div>
                                <div class="col-xs-6">
                                    <input type="text" name="{price_max_name}" value="{price_max_value}" placeholder="{price_max}" class="form-control">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        [/price_min_value]
        <div class="filter filter-hidden">
            <h3 class="filter-title">Бренд</h3>
            <div class="collapse">
                <div class="filter-body">
                    {brands}
                    <div class="filter-checkbox">
                        <label>
                            <input type="checkbox" name="{brands:name}" value="{brands:id}" {brands:checked}>
                            <span></span> {brands:title}
                        </label>
                    </div>
                    {/brands}
                </div>
            </div>
        </div>
        {elements}
        <div class="filter filter-hidden">
            <h3 class="filter-title">{elements:title}</h3>
            <div class="collapse">
                <div class="filter-body">
                    {elements:features}
                    <div class="filter-checkbox">
                        <label>
                            <input type="checkbox" name="{elements:features:name}" value="{elements:features:value}" {elements:features:checked}>
                            <span></span> {elements:features:title}
                        </label>
                    </div>
                    {/elements:features}
                </div>
            </div>
        </div>
        {/elements}
        <div class="filter filter-hidden">
            <h3 class="filter-title collapsed">Наличие</h3>
            <div class="collapse">
                <div class="filter-body">
                    {available}
                    <div class="filter-checkbox">
                        <label>
                            <input type="checkbox" name="{available:name}" value="{available:id}" {available:checked}>
                            <span></span> {available:title}
                        </label>
                    </div>
                    {/available}
                </div>
            </div>
        </div>
        <div class="filter">
            <div class="filter-button">
                <div class="filter-button-row row">
                    <div class="col-xs-6 filter-button-col">
                        <button type="submit" class="btn btn-primary btn-block">Применить</button>
                    </div>
                    <div class="col-xs-6 filter-button-col">
                        <a href="{clean_href}" class="btn btn-default btn-block">Очистить</a>
                    </div>
                </div>
            </div>
        </div>
    </div>
    {/form}
</div>