Jquery color animation in FireFox


My color animation does not seem to be working in FireFox but it seems to be working fine in IE8. My firefox version is 3.6.8. Here is my html

<title>Color Animation</title>
<script src=“…/lib/jquery-1.4.2.min.js” type=“text/javascript” charset=“utf-8”></script>
<script src=“…/lib/jquery.color.js” type=“text/javascript” charset=“utf-8”></script>
<script type=“text/javascript” src=“colorAnimation.js”></script>
<div id=‘disclaimer’>
This is a disclaimer that will be animated.

here is my jquery code

$(‘#disclaimer’).animate({‘backgroundColor’: ‘red’}, 2000);

This jquery version : jquery-1.4.2.min.js
This is the jquery color plugin version: jquery.color.js(version 1.0)

Please tell me what went wrong?