function pickBackground(){

	var randomNumber = Math.floor(Math.random()*7);
	
	var backgroundImage = new Array();
	backgroundImage[0] = "http://www.mvnu.edu/art/images/backgrounds/1.jpg";
	backgroundImage[1] = "http://www.mvnu.edu/art/images/backgrounds/2.jpg";
	backgroundImage[2] = "http://www.mvnu.edu/art/images/backgrounds/3.jpg";
	backgroundImage[3] = "http://www.mvnu.edu/art/images/backgrounds/4.jpg";
	backgroundImage[4] = "http://www.mvnu.edu/art/images/backgrounds/5.jpg";
	backgroundImage[5] = "http://www.mvnu.edu/art/images/backgrounds/6.jpg";
	backgroundImage[6] = "http://www.mvnu.edu/art/images/backgrounds/7.jpg";

	document.body.background = backgroundImage[randomNumber];
}