PHPGrid Dropdown Problem

<?php require_once('../../includes/initialize.php');?>
<?php
/**
 * PHP Grid Component
 *
 * @author Abu Ghufran <gridphp@gmail.com> - http://www.phpgrid.org
 * @version 1.5.2
 * @license: see license.txt included in package
 */

// second grid
$grid = new jqgrid();

$opt["caption"] = "Remittance Data";
//set columns
## ------------------ ##
## CLIENT SIDE EVENTS ##
## ------------------ ##
// just set the JS function name (should exist)
//$opt["onSelectRow"] = "function(ids) { do_onselect(ids); }";
$opt["loadComplete"] = "function(ids) { do_onload(ids); }";

// to simulate, comment theh onselectrow event line
// $opt["ondblClickRow"] = "function(id,row,col) { do_ondblclick(id,row,col); }";

$grid->set_options($opt);


$grid->table = "remittance";
$g->select_command = "SELECT remittance_id, remittance.salesman_id, date, amount FROM remittance INNER JOIN salesman on salesman.salesman_id = remittance.salesman_id";

$col = array();
$col["title"] = "ID"; // caption of column
$col["name"] = "remittance_id"; // grid column name, same as db field or alias from sql
$col["width"] = "5";
$col["editable"] = false;
$col["search"] = false; // this column is not searchable
$cols[] = $col;

$col = array();
$col["title"] = "Salesman"; // caption of column
$col["name"] = "salesman_id"; // grid column name, same as db field or alias from sql
$col["dbname"] = "salesman"; // this is required as we need to search in name field, not id
$col["width"] = "20";
$col["search"] = true; // this column is not searchable
$col["editable"] = true;
$col["edittype"] = "select"; // render as select
# fetch data from database, with alias k for key, v for value
$str = $g->get_dropdown_values("select distinct salesman_id as k, salesman_name as v from salesman");
$col["editoptions"] = array("value"=>":;".$str);
$col["formatter"] = "select"; // display label, not value
$cols[] = $col;

$col = array();
$col["title"] = "Date"; // caption of column
$col["name"] = "date"; // grid column name, same as db field or alias from sql
$col["width"] = "20";
$col["hidden"] = false;
$col["editable"] = true;
$col["formatter"] = "date";
$cols[] = $col;

$col = array();
$col["title"] = "Amount"; // caption of column
$col["name"] = "amount"; // grid column name, same as db field or alias from sql
$col["width"] = "20";
$col["hidden"] = false;
$col["editable"] = true;
$cols[] = $col;

$grid->set_columns($cols);


## ------------------ ##
## SERVER SIDE EVENTS ##
## ------------------ ##

// params are array(<function-name>,<class-object> or <null-if-global-func>,<continue-default-operation>)
// if you pass last argument as true, functions will act as a data filter, and insert/update will be performed by grid
$e["on_insert"] = array("add_remittance", null, true);
$e["on_update"] = array("update_remittance", null, true);
$e["on_delete"] = array("delete_remittance", null, true);
$e["on_after_insert"] = array("after_inset_remittance", null, true); // return last inserted id for further working
$e["on_data_display"] = array("filter_display_remittance", null, true);
$grid->set_events($e);
$grid->set_actions(array(
                        "add"=>true, // allow/disallow add
                        "edit"=>true, // allow/disallow edit
                        "delete"=>false, // allow/disallow delete
                        "inlineadd"=>false, // allow/disallow delete
                        "rowactions"=>false, // show/hide row wise edit/del/save option
                        "view"=>true, // allow/disallow view
                        "autofilter" => true, // show/hide autofilter for search
                        "search" => "advance" // show single/multi field search condition (e.g. simple or advance)
                    )
                );

function update_remittance($data)
{

}

function delete_remittance($data)
{

}

function add_remittance($data)
{

}

function after_insert_remittance($data)
{

}


/**
 * Just update the passed argument, as it is passed by reference
 * Changes will be reflected in grid
 */
function filter_display_remittance($data)
{

    foreach($data["params"] as &$d)
    {
        foreach($d as $k=>$v)
            $d[$k] = strtoupper($d[$k]);
    }
}

$out2 = $grid->render("list2");


?>
<script>

function do_onload(id)
    {
        // remove all tooltip from cell
        $("#list2 td").attr('title','');
        //alert('Simulating, data on load event')
    }

</script>
<?php include_layout_template('header.php'); ?>
<?php include_layout_template('menu.php'); ?>

<!-- start page -->
<div id="page">
  <!-- start content -->

    <h1 class="pagetitle">&nbsp </h1>
    <div style="margin:10px">
    <?php echo $out2?>
    </div>

  <!-- end content -->

<?php include_layout_template('footer.php'); ?>