switch/application/admin/view/general/attachment/select.html

<div class="panel panel-default panel-intro">
    {if !$Think.get.mimetype}
    <div class="panel-heading">
        {:build_heading(null,FALSE)}
        <ul class="nav nav-tabs" data-field="mimetype">
            <li class="active"><a href="#t-all" data-value="" data-toggle="tab">{:__('All')}</a></li>
            {foreach name="mimetypeList" item="vo"}
            <li><a href="#t-{$key}" data-value="{$key}" data-toggle="tab">{$vo}</a></li>
            {/foreach}
        </ul>
    </div>
    {/if}

    <div class="panel-body">
        <div id="myTabContent" class="tab-content">
            <div class="tab-pane fade active in" id="one">
                <div class="widget-body no-padding">
                    <div id="toolbar" class="toolbar">
                        {:build_toolbar('refresh')}
                        <span><button type="button" id="plupload-image" class="btn btn-success plupload" data-mimetype="{$Think.get.mimetype|default=''}" data-multiple="true"><i class="fa fa-upload"></i> {:__('Upload')}</button></span>
                        {if request()->get('multiple') == 'true'}
                        <a class="btn btn-danger btn-choose-multi"><i class="fa fa-check"></i> {:__('Choose')}</a>
                        {/if}
                    </div>
                    <table id="table" class="table table-bordered table-hover" width="100%">

                    </table>
                </div>
            </div>

        </div>
    </div>
</div>