var aryImages = new Array(2);
aryImages[0] = "images/products/slolivegreen1_238x238.jpg";
aryImages[1] = "images/products/slolivegreen1back238x238.jpg";
aryImages[2] = "images/products/slolivegreen1wlaptop238x238.jpg";
for (i=0; i < aryImages.length; i++) {
var preload = new Image();
preload.src = aryImages[i];
}
function swap(imgIndex) {
document['imgMain'].src = aryImages[imgIndex];
}