perbaikan

<script type="text/javascript" >
    $(document).ready(function () {
        $('#table_id').DataTable({
            "dom": 'f<"toolbar">rtip'
        });

        $('div.toolbar').html('<button type="submit" id="export" class="btn"><i class="glyphicon glyphicon-export"></i> Export CSV File </button><button type="submit" id="import" class="btn" style="margin-left:10px"><i class="glyphicon glyphicon-import"></i> Import CSV File </button>');
        $('#export').click(function () {
            // alert('woooy');
            window.location.href = "<?php echo base_url('wms/item_master/export');?>";
        });



        $('#import').click(function() {
              $('#hidden_file_browser').click();
            });


        $('#hidden_file_browser').change(function () {
            document.getElementById("hidden_submit_file").submit();
        });
        $("a#select").click(function(e){
            e.preventDefault();
            $("td span input").toggle("slow");
            $("th span").toggle("slow");
            $("tr#all").toggle("slow");
            $("tr#all th").each(function () {
                this.style.setProperty( 'background-color', '#3276B1', 'important' );
                this.style.setProperty( 'border-top', 'none', 'important' );
                this.style.setProperty( 'border-left', 'none', 'important' );
            });
            $( 'th.numb' ).each(function () {
                this.style.setProperty( 'display', 'none', 'important' );
            });
            $( 'td.numb' ).each(function () {
                this.style.setProperty( 'display', 'none', 'important' );
            });
        });


    });
</script>
<style>
    thead th {
        padding: 10px 0px !important;
        text-align: center !important;
    }
</style>
<div class="col-sm-12">
    <div class="panel panel-primary">
        <div class="panel-heading">
            <div class="pull-right" style="margin:-5px -5px 0px;">
                <a href="<?php echo base_url('wms/item_master/add');?>"  title="Add data" style= "font-size: 24px;">
                    <i class="glyphicon glyphicon-plus-sign" style="color:white"></i>
                </a>
            </div>
            <h3 class="panel-title">Item Master</h3>
        </div>
                <?php
                    // masukan Pesan
                    $flash = $this->session->flashdata('pesan');
                    if ($flash!= false){
                    $flash_berhasil = $flash['berhasil'];
                    $flash_text = $flash['text'];

                    if ($flash_berhasil ==true){
                            echo "<div class='alert alert-success alert-dismissible' role='alert'>
                              <button type='button' class='close' data-dismiss='alert'><span aria-hidden='true'>&times;</span><span class='sr-only'>Close</span></button>
                              <strong>Success!</strong>".$flash_text.
                            "</div>";
                        }
                    else{
                            echo "<div class='alert alert-warning alert-dismissible' role='alert'>
                              <button type='button' class='close' data-dismiss='alert'><span aria-hidden='true'>&times;</span><span class='sr-only'>Close</span></button>
                              <strong>Warning!</strong>".$flash_text.
                            "</div>";
                        }
                    }
                    if(isset($_SESSION['import']) && $_SESSION['import']['berhasil'] == false){
                        echo "<div class='alert alert-warning alert-dismissible' role='alert'>
                            <button type='button' class='close' data-dismiss='alert'><span aria-hidden='true'>&times;</span><span class='sr-only'>Close</span></button>
                            <strong>Warning!</strong>".$_SESSION['import']['text'].
                        "</div>";
                    }elseif(isset($_SESSION['import']) && $_SESSION['import']['berhasil'] == true){
                        echo "<div class='alert alert-success alert-dismissible' role='alert'>
                            <button type='button' class='close' data-dismiss='alert'><span aria-hidden='true'>&times;</span><span class='sr-only'>Close</span></button>
                            <strong>Success!</strong> Import</div>";
                    }

                    if(isset($_SESSION['import'])){
                        unset($_SESSION['import']);
                    }
                ?>

        <div class="panel-body">
            <div style="display:none">
                <form id="hidden_submit_file" action="<?php echo base_url('wms/item_master/import_csv');?>" method="post" enctype="multipart/form-data">
                    <input type="file" accept=".csv" id="hidden_file_browser" name="data"></input>
                </form>
            </div>
            <a class="btn" id="select">Select To Print</a>
            <!--<div style="display:inline;">
                    <form id="export_file" action="wms/item_master/export" method="post">
                            <button type="submit" id="export" class="btn" style="background-color:cyan; margin-bottom:5px"><i class="glyphicon glyphicon-export"></i> Export CSV File </button>
                    </form>
            </div>-->
<div style='width:150%;overflow:auto'>
            <table  id="table_id" class="table table-bordered table-striped table-hover table-heading table-datatable">
                <thead>
                    <tr>
                        <th class="numb">NO</th>
                        <th>ITEM&nbsp;CODE&nbsp;</th>
                        <th>ITEM NAME</th>
                        <th>COMPANY</th>
                        <th>ORDER LIMIT</th>
                        <th>UNIT</th>
                        <th style="width:160px">UNIT PRICE</th>
                        <th>MIN STOCK</th>
                        <th>COMMENT</th>
                        <th>LAST UPDATE BY</th>
                        <th>UPDATE TIME</th>
                        <th>ACTION</th>
                    </tr>
                </thead>
                <tbody>
                    <tr style="display:none" id="all">
                        <th class="numb"></th>
                        <th>Select&nbsp;All <input type="checkbox" onchange="checkAll(this)" name="chk[]" />&nbsp;</th>
                        <script>
                            function checkAll(ele) {
                                 var checkboxes = document.getElementsByTagName('input');
                                 if (ele.checked) {
                                     for (var i = 0; i < checkboxes.length; i++) {
                                         if (checkboxes[i].type == 'checkbox') {
                                             checkboxes[i].checked = true;
                                         }
                                     }
                                 } else {
                                     for (var i = 0; i < checkboxes.length; i++) {
                                         console.log(i)
                                         if (checkboxes[i].type == 'checkbox') {
                                             checkboxes[i].checked = false;
                                         }
                                     }
                                 }
                             }
                        </script>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                        <th></th>
                    </tr>
                    <?php
                    $no = 1;
                    foreach ($item_master as $dat) {

                        echo '<tr width="20px"; height="10px">';
                        echo '<td class="numb">' . $no . '</td>';
                        echo '<td id="lengthways" name="chk[]"><span><input type="checkbox" style="display:none"></span>&nbsp;' . $dat->item_code . '</td>';
                        echo '<td>' . $dat->item_name . '</td>';
                        echo '<td>' . $dat->company . '</td>';
                        echo '<td align="right">'.$this->format->decimal($dat->order_limit) . '</td>';
                        echo '<td>' . $dat->unit . '</td>';
                        echo '<td align="right">'.$this->money->format($dat->unit_price,'IDR',true). '</td>';
                        echo '<td align="right">'.$this->format->decimal($dat->minimum_stock) . '</td>';
                        echo '<td>' . nl2br($dat->comment) . '</td>';
                        if(isset($dat->last_update)){
                            echo '<td>'.$dat->last_update.'</td>';
                        }else{
                            echo '<td align="center"> - </td>';
                        }
                        if(isset($dat->last_update)){
                            echo '<td>'.$dat->update_time.'</td>';
                        }else{
                            echo '<td align="center"> - </td>';
                        }
                        echo '
                            <td>
                                    <a href="'. base_url('wms/item_master/edit/'. $dat->item_code) . '" title="Edit">
                                            <i class="glyphicon glyphicon-edit"></i>
                                    </a>
                                    <a href="'. base_url('wms/item_master/delete/'. $dat->item_code) . '" title="Delete" onclick="return confirm_delete()">
                                            <i class="glyphicon glyphicon-trash"></i>
                                    </a>
                            </td>';
                        echo '</tr>';
                        $no++;
                    }
                    ?>
                </tbody>
            </table>
</div>
            <div><button type="submit" class="btn" value="" style=""><i class='glyphicon glyphicon-print'></i> Print</button></div>
        </div>
    </div>
</div>