var selfpowered01On = new Image();
var selfpowered01Off = new Image();
var selfpowered02On = new Image();
var selfpowered02Off = new Image();

selfpowered01On.src = root + "images/droplets/home/home-selfpowered-imageOn.jpg";
selfpowered01Off.src = root + "images/droplets/home/home-selfpowered-imageOff.jpg";
selfpowered02On.src = root + "images/droplets/home/home-button-learnmoreOn_fr.gif";
selfpowered02Off.src = root + "images/droplets/home/home-button-learnmoreOff_fr.gif";