How to keep the block text in div tag refresh function?
<p>I have a page that the function is to refresh div tag.
Div tag function is refresh the data will receive.</p>

<p>So far that's ok.</p>

<p>When I block the text using mouse, that's will clear the block text based on timing "20000". This below the JS script function.</p>

<pre><code>&lt;script src='js/jquery.min.js'&gt;&lt;/script&gt;
&lt;script&gt;
    $(document).ready(function()
    {
        $("#content2").load("post_rf.php");
        var refreshId = setInterval(function()
        {
            $("#content2").load('post_rf.php?randval='+ Math.random());
        }, 20000);
        $.ajaxSetup({ cache: false });
    });
    &lt;/script&gt;
</code></pre>

<p>What I want to do is, how to keep the block text in div refresh function ?
Because some user maybe want to copy the text. In this case, user must quickly copy the text before div refresh.</p>

<p>Maybe the example like facebook post live update.</p>
