<script> window.opener.hdnmes.value='asdasd'; window.close(); </script> (ERROR)
              ^
i am getting this error when opening the frmdisplayMarkSheet.aspx page by this way---->

 Dim strValue As String= " <a href=MarkSheets/frmDisplayMarkSheet.aspx?TestID=" & TestID.Trim & "&StudentID=" & Session("StudentID") & _
                               " target= _blank > " & TestName & " </a> "
                Return strValue
i did not use opener but after running page i see in VIEW SOURCE CODE at the top of page i got this line automatically added-->

 <script> window.opener.hdnmes.value='asdasd'; window.close(); </script>

pls help me