<script>
$("<div id='topside'></div>").insertBefore($("#pun_wrap"));
var h_hght = 86;
var h_mrg = 0;
$(function(){
var elem = $('#topside');
var top = $(this).scrollTop();
if(top > h_hght){
elem.css('top', h_mrg);
}
$(window).scroll(function(){
top = $(this).scrollTop();
if (top+h_mrg < h_hght) {
elem.css('top', (h_hght-top));
} else {
elem.css('top', h_mrg);
}
});
});
</script>