//PreLoad Images
	a1 = new Image();
	a1.src = "images/a1.gif";
	a2 = new Image();
	a2.src = "images/a2.gif";
	b1 = new Image();
	b1.src = "images/b1.gif";
	b2 = new Image();
	b2.src = "images/b2.gif";
	c1 = new Image();
	c1.src = "images/c1.gif";
	c2 = new Image();
	c2.src = "images/c2.gif";
	d1 = new Image();
	d1.src = "images/d1.gif";
	d2 = new Image();
	d2.src = "images/d2.gif";
	e1 = new Image();
	e1.src = "images/e1.gif";
	e2 = new Image();
	e2.src = "images/e2.gif";
	f1 = new Image();
	f1.src = "images/f1.gif";
	f2 = new Image();
	f2.src = "images/f2.gif";
	g1 = new Image();
	g1.src = "images/g1.gif";
	g2 = new Image();
	g2.src = "images/g2.gif";
	h1 = new Image();
	h1.src = "images/h1.gif";
	h2 = new Image();
	h2.src = "images/h2.gif";
	i1 = new Image();
	i1.src = "images/i1.gif";
	i2 = new Image();
	i2.src = "images/i2.gif";
	j1 = new Image();
	j1.src = "images/j1.gif";
	j2 = new Image();
	j2.src = "images/j2.gif";
	k1 = new Image();
	k1.src = "images/k1.gif";
	k2 = new Image();
	k2.src = "images/k2.gif";
	l1 = new Image();
	l1.src = "images/l1.gif";
	l2 = new Image();
	l2.src = "images/l2.gif";