avoid page counting when click refresh button
<p>I made a php script to counts the number of  users have viewed  my website's pages. This is my code</p>

<pre><code>&lt;?php   
    require_once ('test.php');

    $institute_id = 14;

    $q = "INSERT INTO page_views2 ( institute_id, views) VALUES ( $institute_id, 1)
         ON DUPLICATE KEY UPDATE views=views+1"
         ; 
    $r = mysqli_query ($dbc, $q);

?&gt;
</code></pre>

<p>I added this to top of my webpages and this is working (views incrementing) properly when I open the pages. But my problem is When I refresh the page, page views is incrementing by 1. It is okey when it is open first time. But I want to avoid from this when someone is refreshing the page. </p>

<p>so can any body tell me how can I do this?</p>
