// JavaScript Document
<script language="JavaScript">
<!-- hide
plumbingon = new Image();
plumbingon.src ="buttons/plumbingOn.gif";

coolingon = new Image();
coolingon.src ="buttons/coolingOn.gif";

heatingon = new Image();
heating.src ="buttons/heatingOn.gif";

solarHeatingon = new Image();
solarHeatingon.src ="buttons/solarHeatingOn.gif";

airQualityon = new Image();
airQuality.src ="buttons/airQualityOn.gif";

electricalon = new Image();
electricalon.src ="buttons/electricalOn.gif";
// End -->
</script>