I am working on an asp.net project in which i have a checkboxlist which i have bound using

DataTable dt = new Process_Hotels().SelectAllFacilty();           

if (dt.Rows.Count > 0)                                            

{                                                                 

    cblHotelFacility.DataSource = dt;                             

    cblHotelFacility.DataTextField = Facility;                  

    cblHotelFacility.DataValueField = ID;                       

    cblHotelFacility.DataBind();                                  



    foreach (ListItem li in cblHotelFacility.Items)               

    {                                                             

        li.Attributes.Add(JSvalue, li.Value);                   

    }                                                             

}

and now i want to get selected value ID of checkboxlist using javascript on button click.For that i have following javascript code on button click:

<script type=text/javascript>                                                                                   



    function test() {                                                                                             

        var checkList1 = document.getElementById('<%= cblHotelFacility.ClientID %>');                             

        var checkBoxList1 = checkList1.getElementsByTagName(input);                                             

        var checkBoxSelectedItems1 = new Array();                                                                 



        for (var i = 0; i < checkBoxList1.length; i++) {                                                          

            if (checkBoxList1[i].checked) {                                                                       

                checkBoxSelectedItems1.push(checkBoxList1[i].value);                                              

                //alert('checked:' + checkBoxSelectedItems1.push(checkBoxList1[i].getAttribute(JSvalue)).value);

                alert('checked - : ' + checkBoxList1[i].value)                                                    

            }                                                                                                     

        }                                                                                                         

    }                                                                                                             

</script>

but the on clicking button the selected checkboxlist is showing 0. I want to get ID of selected checkboxlist items.Please help.