Setting value of hidden element in php
<p>I have a hidden field in form. On form submit I call a database function to add the inputs to database and return result of query. I wish to set the value returned to hidden field. But when I am not able to assign a value to it</p>

<pre><code>&lt;form name="frmAddBook" id="frmAddBook" method="post"&gt;
&lt;input type="hidden" name="actionResult" id="actionResult"&gt;
</code></pre>

<h2>PHP</h2>

<pre><code>echo '
&lt;script type="text/javascript"&gt;
alert("hello"); 
document.getElementById("actionResult").value=1;
alert("2222222");
alert(document.frmAddBook.getElementById("actionResult").value);
&lt;/script&gt;';
</code></pre>
