whats wrong with all jquery functions
<p>can anyone tell me why this code is not running as expected </p>

<pre><code> $(document).ready(function () {

   $('#search_box').on('paste keyup change', 'input', function () {

    alert("hi");
    }
    });
 });
</code></pre>

<p>the code is working in another page, when i copied it its not working .
I know it has to be simple but I dont get it.</p>
