Jquery help needed for checkbox

Hi,

I bound my database values in asp.net checkbox list and i am using jquery 1.10+ version. when i try to loop through the checkbox list values instead of values am getting 'on','on','on'... 

below my sample code

<asp:CheckBox ID="chksample" RepeatColumns="5" RepeatLayout="flow"
                                                runat="server" RepeatDirection="Horizontal" />

var strSample;

$("[id*=chksample] input:checked").each(function () {
            var value = $(this).val();
            strSample += value + ", ";
        });