<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>

    <div class="navbar-form navbar-left">
      <ul class="nav navbar-nav navbar-left">
        <a href="http://localhost/ecotani/"><img src="<?php echo base_url() ?>assets/image/kecil.png"></a>
      </ul>

      <!-- Collect the nav links, forms, and other content for toggling -->
      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
        <div class="container" style="padding-right:100px; ">
          <b>
              <?php if($this->session->userdata('username')) : ?>
              <ul class="nav navbar-nav navbar-left">
                <li><?=anchor('admin/products','Produk')?></li>
                <li><?=anchor('admin/invoices','Invoice')?></li>
              </ul>
              <ul class="nav navbar-nav navbar-right">
                <li>
                        <span style="line-height:50px;">
                          <?php echo 'Anda: ' . $this->session->userdata('username');?>
                        </span>
                    </li>
                    <li><?php echo anchor('logout', 'Logout');?></li>
              </ul>
              <?php endif; ?>
          </b>
        </div>
      </div><!-- /.navbar-collapse -->
    </div>
  </div><!-- /.container-fluid -->
</nav>