Error: Webservice not defined

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webservice

hello,
i have made webservice, and i am trying to consume it using javascript, but when i call the webservice method it gives the error Webservice not defined. I have given reference of it .

<pre lang="c#">

<asp:ScriptManager ID="ScriptManager1" runat="server">
<services>
<asp:ServiceReference Path="../WebService.asmx" />


my method

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService
{
    CultureInfo cul = new CultureInfo("gu-IN", true);
    protected sdData s = new sdData();
    protected component comp = new component();
    public ClsVB objvb = new ClsVB();
    DBAccess dbAccess = new DBAccess();

    public WebService()
    {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string SubmitDDIPo(string txtCaseNoDDIPO, int txtDDIPO, int txtAmount, string txtDDDate, string txtBank, string District_Code )
    {

javascript method calling

<script type="text/javascript">
            function addDDIPO() {
                "DDIPOdiv".Obctrl().style.display = "block";
                "fadeDiv".Obctrl().style.display = "block";
              
            }
            function submitDDIPO()
             {
                 WebService.SubmitDDIPo("txtCaseNoDDIPO".Obctrl().value, "txtDDIPO".Obctrl().value, "txtAmount".Obctrl().value, "txtDDDate".Obctrl().value, "txtBank".Obctrl().value, Session["District_Code"].ToString(), ResultSubmitSucess, ResultFailure);
             }
            </script>

is that something i missed?
please help