View source for Composition of Relations

Below are visualizations of the composition of two relations.
Here 
<br><math>S=\{(x,y)\ |\ x^2+y^2\leq 1\}</math>
<br>and 
<br><math>T=\{(x,y)\ |\ y=x^2\}</math>



S first, then T:

<html>
<script type="text/javascript" src="http://www.wolfram.com/cdf-player/plugin/v2.1/cdfplugin.js"></script>
<script type="text/javascript">
var cdf = new cdfplugin();
cdf.embed('http://helmut.knaust.info/class/201320_3325/comp1.cdf', 904, 310);
</script>
</html>

T first, then S:

<html>
<script type="text/javascript" src="http://www.wolfram.com/cdf-player/plugin/v2.1/cdfplugin.js"></script>
<script type="text/javascript">
var cdf = new cdfplugin();
cdf.embed('http://helmut.knaust.info/class/201320_3325/comp2.cdf', 904, 345);
</script>
</html>