Onclick refresh only div content, Not all aspx page
<p>I have two pages that inherit from one master page, First.aspx or second.aspx. Navigation is on master page. If I am on first.aspx page &amp; want to go to second.aspx onClick. I just want to load My contentplaceholder, not refresh all of the page. Is this possible or not?How do I do this if it is possible?</p>

<p>I have tried using:</p>

<pre><code>$(function() { $("#btn").click(function() {
   $("#Content").load("Second.aspx");
   }); 
});
</code></pre>

<p>I have also tried using this:</p>

<pre><code>function SelectRol() {
   window.location = 'Second.aspx';
   return false;
}
</code></pre>
