source: pro-violet-viettel/sourcecode/application/views/layout/collaborator/sidebar.php

<?php
$class = $this->router->class;
$method = $this->router->method;
$collaboratorInfo = $this->session->userdata('collaboratorInfo');
$collaboratorId = $collaboratorInfo['id'];
?>
                        <div class="main-container-inner">
                                <a class="menu-toggler" id="menu-toggler" href="#">
                                        <span class="menu-text"></span>
                                </a>

                                <div class="sidebar sidebar-fixed" id="sidebar">
                                        <script type="text/javascript">
                                                try{ace.settings.check('sidebar' , 'fixed')}catch(e){}
                                        </script>

                                        <nav class="navbar navbar-minimal animate open" role="navigation" style="background:transparent">
                                                <ul class="navbar-menu animate">
                                                
                                                        <li>
                                                                <a href="<?php echo $base_url; ?>cong_tac_vien">
                                                                        <span class="menu-text"> Doanh thu</span>
                                                                </a>
                                                        </li>
                                                        
                                                        <li>
                                                                <a href="<?php echo $base_url; ?>cong_tac_vien/nguoi_dung">
                                                                        <span class="menu-text"> Người dùng </span>
                                                                </a>
                                                        </li>
                                                        
                                                        <li>
                                                                <a href="<?php echo $base_url; ?>cong_tac_vien/thong_tin_ca_nhan">
                                                                        <span class="menu-text"> ThÎng tin cá nhân </span>
                                                                </a>
                                                        </li>
                                                        
                                                </ul>
                                        </nav>
                                        <div class="sidebar-collapse" id="sidebar-collapse">
                                                <i class="icon-double-angle-left" data-icon1="icon-double-angle-left" data-icon2="icon-double-angle-right"></i>
                                        </div>

                                        <script type="text/javascript">
                                                try{ace.settings.check('sidebar' , 'collapsed')}catch(e){}
                                        </script>

                                        <ul class="logo-group list-inline">
                                                <li><img src="<?php echo $base_url;?>assets/img/logo_Violet.png" width="64" class="img-responsive"></li>
                                                <li><img src="<?php echo $base_url;?>assets/img/logo_viettel.png" width="64" class="img-responsive"></li>
                                        </ul>
                                </div>