Here's the code:


<form id="rating_form" class="rating_form">
	<input type="hidden" name="nutshot" value="<c:out value="${nutshotData.fbEpisodeKey}" />" />	
		
	<div id="rating_section" style="position:absolute; left:320px; top:400px;">
		
	<div style="position:absolute; left:0px; top:0px;">
		<ul class="star-rating">
			<li class="current-rating" style="width:<c:out value='${userPercentage}' />%;">Currently 2.5/5 Stars.</li>
			<li><a clickrewriteform="rating_form" clickrewriteid="rating_section" clickrewriteurl="<c:out value='${hostedAppUrl}' />/rating.htm?starRating=1" href="#" title="I feel stupider from watching this." class="one-star">1</a></li>
			<li><a clickrewriteform="rating_form" clickrewriteid="rating_section" clickrewriteurl="<c:out value='${hostedAppUrl}' />/rating.htm?starRating=2" href="#" title="That was just sad." class="two-stars">2</a></li>
			<li><a clickrewriteform="rating_form" clickrewriteid="rating_section" clickrewriteurl="<c:out value='${hostedAppUrl}' />/rating.htm?starRating=3" href="#" title="Haha that was funny." class="three-stars">3</a></li>
			<li><a clickrewriteform="rating_form" clickrewriteid="rating_section" clickrewriteurl="<c:out value='${hostedAppUrl}' />/rating.htm?starRating=4" href="#" title="Milk and corn out my nose funny." class="four-stars">4</a></li>
			<li><a clickrewriteform="rating_form" clickrewriteid="rating_section" clickrewriteurl="<c:out value='${hostedAppUrl}' />/rating.htm?starRating=5" href="#" title="I just wet my pants laughing." class="five-stars">5</a></li>
		</ul>
	</div>
	<div style="position:absolute; left:140px; top:0px; width: 200px">
		Average Rating: <c:out value='${averageRating}' />
	</div>
	</div>
</form>


And the styles (where the magic happens):

.star-rating,
.star-rating a:hover,
.star-rating a:active,
.star-rating a:focus,
.star-rating .current-rating{
	background: url('<c:out value="${hostedImagesUrl}" />/face.gif') left -1000px repeat-x;
}
.star-rating{
	position:relative;
	width:125px;
	height:25px;
	overflow:hidden;
	list-style:none;
	margin:0;
	padding:0;
	background-position: left top;
}
.star-rating li{
	display: inline;
}
.star-rating a,
.star-rating .current-rating{
	position:absolute;
	top:0;
	left:0;
	text-indent:-1000em;
	height:25px;
	line-height:25px;
	outline:none;
	overflow:hidden;
	border: none;
}
.star-rating a:hover,
.star-rating a:active,
.star-rating a:focus{
	background-position: left bottom;
}
.star-rating a.one-star{
	width:20%;
	z-index:6;
}
.star-rating a.two-stars{
	width:40%;
	z-index:5;
}
.star-rating a.three-stars{
	width:60%;
	z-index:4;
}
.star-rating a.four-stars{
	width:80%;
	z-index:3;
}
.star-rating a.five-stars{
	width:100%;
	z-index:2;
}
.star-rating .current-rating{
	z-index:1;
	background-position: left center;
}