//
// Random Header Background Image
//

function randomBackgroundImage() {
	var numberOfImages = 4; // When adding additional images, simply increment this number appropriately
	var num = Math.floor(Math.random()*numberOfImages) + 1;
	document.getElementById('header').style.backgroundImage = 'url("/images/header-backgrounds/spread-' + num + '.png")';
}

// Run randomBackgroundImage as soon as this script is loaded,
// instead of waiting for the DOM to finish loading
randomBackgroundImage();