var backImage = new Array();
	backImage[0] = "images/temple.jpg";
	backImage[1] = "images/cocoon.jpg";

	// invitation screens
	backImage[2] = "images/2010-demo-1.jpg";
	backImage[3] = "images/2010-demo-2.jpg";
	backImage[4] = "images/2010-demo-3.jpg";
	backImage[5] = "images/2010-demo-4.jpg";
	backImage[6] = "images/2010-demo-5.jpg";
	backImage[7] = "images/2010-demo-6.jpg";
	backImage[8] = "images/2010-demo-7.jpg";

	backImage[9] = "images/fog.jpg";
	backImage[10] = "images/circuitry.jpg";
	backImage[11] = "";

function bgi(img, color, repeat, x) {
	document.getElementById('body').style.backgroundImage = "url(" + backImage[img] + ")";
	document.getElementById('body').style.backgroundColor = color;
	(repeat == false) ? repeat = "no-repeat" : repeat = "repeat";
	document.getElementById('body').style.backgroundRepeat = repeat;
	document.getElementById('body').style.backgroundPosition = x;
}