AJAX div无法正常工作

Question

Am working on a grails application. I need to retrieve database data using ajax. I'm having trouble replacing content, it's unnecessarily refreshing the header. My structure is:

<div id="header">
 <g:render template="/test/header"></g:render>
</div>
<div class="addrow">
 table content from db
</div>

My code is:

success: function(response){
 $(".addrow").html(response); 
}

It's refreshing the header also, not just the data. I tried with these also but no luck:

 $(".addrow").parent().html(response);
 $(".addrow").replaceWith(response);

Now do I avoid refreshing the header?