gistfile1.txt

$col = array();
$col["title"] = "CWP";
$col["name"] = "ck_prod_cop";
$col["editable"] = true;
$col["edittype"] = "checkbox";
$col["formatter"] = "checkbox";
$col["editoptions"] = array("value"=>"0:1");
$col["hidden"] = false;
$col["width"] = "35";
$col["export"] = false;
$col["search"] = false;
$cols[] = $col;	

$col = array();
$col["title"] = "Status"; 			
$col["name"] = "unit_closed"; 				
$col["width"] = "30";
$col["editable"] = true;
$col["edittype"] = "select";
$str = "O:O;C:C";
$col["editoptions"] = array("value"=>$str);
$col["export"] = false;
$col["search"] = false;
$col["editrules"] = array("required"=>false, "readonly"=>true, "readonly-when"=>"check_po");
$cols[] = $col;

<script>
	function check_po(formid) 
	{
			ck_prod_cop = jQuery("input[name=ck_prod_cop]:last, select[name=ck_prod_cop]:last",formid).val();
			if (ck_prod_cop != 1) 
			{     
				return true
			}			
    }
</script>