Having a problem with a rotator. displaying in firefox, but not Chrome or IE

Having a problem with a rotator. displaying in firefox, but not Chrome or IE

I made a quote slider on a website im helping build, it works in Firefox, but not Chrome or IE, 
below is a link to the site, and also my code.

www.GQCoatings.com

<script language="javascript" type="text/javascript"  src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"</script> 
<script language="javascript"> 
$(document).ready(function(){
$('#testimonials .slide');
setInterval(function(){
$('#testimonials .slide').filter(':visible').fadeOut(1000,function(){
if($(this).next('li.slide').size()){
$(this).next().fadeIn(1000);
}
else{
$('#testimonials .slide').eq(0).fadeIn(1000);
}
});
},12000);
});
</script>