Use jQuery to insert values into input fields?
<p>In the code below, I would like to use jQuery to put the word <code>"username"</code> into the value field. Then, when the user selects the input box, the word "username" would disappear leaving an empty input field for the user to input his username. </p>

<p>Can this be done with jQuery?</p>

<pre><code>&lt;p class="login-username"&gt;
    &lt;input type="text" name="log" id="user_login" class="input" value="" size="20" tabindex="10"&gt;
&lt;/p&gt;
</code></pre>
