// Description: This JavaScript code randoml selects one of the following images and makes it the
// header. You can add a new image by adding the image url to the list and adding a comma at the 
// end of the previous last image.

function changeBG(elementID) {
	var bgImages = new Array (
			"images/banners/design5.jpg",
			"images/banners/design6.jpg",
			"images/banners/design7.jpg",
			"images/banners/design8.jpg",
			"images/banners/design9.jpg"
		);
		
	element = document.getElementById(elementID);
	if (element) {
		element.style.backgroundImage = "url(" + bgImages[Math.floor(Math.random()*bgImages.length)] + ")";
	} else {}
}