how to pass value on repeaters row click event to generate popup ?

See more:

repeater

What i am trying to do is on repeaters row click i want to generate popup containg value to fill belongs to that row ...

<asp:Repeater ID="repEmpHeadings" OnItemCommand="repEmpHeadings_ItemCommand" runat="server" OnItemDataBound="repEmpHeadings_ItemDataBound">
  <ItemTemplate>
    <div onclick="<%# getPostbackReference((string) Eval("CalibrationProfileId").ToString() + ";" +Eval("EmpCalibrationHeadingId").ToString() + ";" + Eval("HeadingId").ToString() ) %>">
<%# Container.DataItem %>
      <div></div>
      <div></div>
      <div></div>
    </div>
  </ItemTemplate>
</asp:Repeater>

On my page load :-

if (IsPostBack)
                {
                    string arg = Request["__EVENTARGUMENT"];
                    if (string.IsNullOrEmpty(arg) == false)
                    {
                        if (arg.StartsWith("row"))
                        {
                            string[] arg1 = new string[3];
                            arg1 = arg.Substring(arg.IndexOf("#") + 1).ToString().Split(';');
                            string v = arg.Substring(arg.IndexOf("#") + 1);
                            mpCompetencyDetails.Show();
                            EditMidYearCompetencyDetails(Convert.ToInt32(arg1[0]), Convert.ToInt32(arg1[1]), Convert.ToInt32(arg1[2]));
                        }
                    }
                }

This is myn other method

protected string getPostbackReference(string Name)
      {
          return ClientScript.GetPostBackEventReference(this, "rowEvent#" + Name);
      }

model popup is coming , but the id which i am passing on div click event are not coming proper all the time