jquery for refreshing only div content

jquery for refreshing only div content


<script>
jQuery(document).ready(function(){
jQuery("#amot").change(function() {
//var file_name="components/com_virtuemart/themes/default/templates/common/shopIndex.tpl.php";
jQuery("#coupon-box").load("index.php #coupon-box")
return false;
});
});
</script>