function pickHeader(){

	var randomNumber = Math.floor(Math.random()*14);

	var image = new Array();
	image[0] = "images/mainheaders/1.jpg";
	image[1] = "images/mainheaders/2.jpg";
	image[2] = "images/mainheaders/3.jpg";
	image[3] = "images/mainheaders/4.jpg";
	image[4] = "images/mainheaders/5.jpg";
	image[5] = "images/mainheaders/6.jpg";
	image[6] = "images/mainheaders/7.jpg";
	image[7] = "images/mainheaders/8.jpg";
	image[8] = "images/mainheaders/9.jpg";
	image[9] = "images/mainheaders/10.jpg";
	image[10] = "images/mainheaders/11.jpg";
	image[11] = "images/mainheaders/12.jpg";
	image[12] = "images/mainheaders/13.jpg";
	image[13] = "images/mainheaders/14.jpg";

	document.getElementById('homePageHeader').style.background = 'url(' + image[randomNumber] + ')';
}