Hi,
Through Completion its not possible to get the voterid. If you make use of the Resultsreport option (URL in completion menu) you can add the following code to the resultsreport.aspx file to show the Voterid:
-- C# code inside asp:
<div>VoterID: <%=Convert.ToInt32(Session["voterid"]) %> </div>
The voterid is taken from the session data which is available after the submission of the surveydata and saving it to the database.
Quick test to get it otherwise (see below script) dont seem to work.
-- jquery script:
<script>
$(document).ready(function () {
var voterid = '<%= Session["voterid"] %>';
alert(voterid);
});
</script