I tryed this
<html>
<body bgcolor="aqua">
<applet code="TimsWorldClock.class" width="132" height="135" border=1>
<param name="bgcolor" value="00FFFF" id="clockbackground">
Your browser does not support applets
</applet>
</body>
</html>
and then you could change it using the clockbackground object
I worked in theory, not practice
Does anyone know where I went wrong, or a better way to do it?