aspx calendar control

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C#

C#4.0

Hi,

I m developing web application in asp.net with c# in which i m having

2 web form.

First web page is connected with masterpage.
Second is not connected with master page

in both webpage i m taking textbox for date
i m using aspx calendar control for taking date it.

Second webpage is running fine, which is not connected with masterpage.

But in first i m getting problem ,for taking date from aspx calender control.
in this case calender is shown in image, click but when i select date from calender, i m not getting date in textbox

My aspx code is show below:

<script language="javascript">
      function PopupPicker(ctl) {
          var PopupWindow = null;
          PopupWindow = window.open('DatePicker.aspx?ctl=' + ctl, 'zx', 'width=250,height=250');
          PopupWindow.focus();
      }
  </script>

<asp:TextBox ID="txtDate" runat="server"><img src="images/btnimg.jpg"
style="margin-top:3px;width:30px;height:13px; cursor:hand;" alt=""
önclick="PopupPicker('txtDate')" />

and datepicker.aspx code is shown below

<script language="javascript">
        function SetDate(dateValue, ctl) {
            thisForm = window.opener.document.forms[0].elements[ctl].value = dateValue;
            self.close();
        }
    </script>

protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)
    {
        string ctrl = Request.QueryString["ctl"];
        HyperLink hpl = new HyperLink();
        hpl.Text = ((LiteralControl)e.Cell.Controls[0]).Text;
        hpl.NavigateUrl = "javascript:SetDate('" + e.Day.Date.ToShortDateString() + "','" + ctrl + "');";
        e.Cell.Controls.Clear();
        e.Cell.Controls.Add(hpl);
    }

can anyone help me pls