(1) Add Jquery file for scroll event fire
(2) you have two ifmare in page right add this javascript code in your page
<script type="text/javascript" language="javascript">
$(document).ready(function(){
$(window.frames[0]).on('scroll', function() {
$(window.frames[1]).scrollTop($(window.frames[0]).scrollTop());
});
$(window.frames[1]).on('scroll', function() {
$(window.frames[0]).scrollTop($(window.frames[1]).scrollTop());
});
});
</script>