You can use the JavaScript confirm() method.
1)
Set up your survey to use JavaScript.
2) Add the following script to the source of the one of the questions on the page.
When the submit button is clicked, the script will pop up a dialogue. If the respondent clicks "OK" the survey submits, if they click "Cancel" nothing happens.
<script type="text/javascript" charset="utf-8">
$(document).ready(function() {
// Interrupt the submit function
$('#movenextbtn, #movesubmitbtn').click(function(){
if(confirm('This is your final submission of survey. Do you want to continue?')) {
return true;
}
else {
return false;
}
});
});
</script>
