var isFlipped = false;
var frontImage = new Image();
var backImage = new Image();

function flipCard() {
	if(!document.images)
		return;
		
	if(isFlipped)
		document.images.card.src = frontImage.src;
	else
		document.images.card.src = backImage.src;
		
	isFlipped = !isFlipped;
}

function loadImages(imageRoot) {
    if(document.images) {
	frontImage.src = "images/" + imageRoot + "Front.jpg";
	backImage.src = "images/" + imageRoot + "Back.jpg";
    }
}