var bgpath = "/images/backgrounds/";
var ext = ".jpg";
var tag = "-blur";

var backgrounds = new Array(
	"cabin",
	"connies",
	"eggelevator",
	"flowerburn",
	"plymouth",
	"skaillhouse",
	"twoandadune",
	"walking");

function rand(end) {
	return Math.floor(Math.random( ) * (end+1))
}

var GB_ROOT_DIR = "/scripts/";

window.addEvent('domready', initialise_page);

function initialise_page() {
	rn = rand(backgrounds.length-1);
	var lowBg = new Image();
	lowBg.onload = function() {
		document.body.style.backgroundImage = "url(" + lowBg.src + ")";
		window.setTimeout(function() {
			var bigBg = new Image();
			bigBg.onload = function() {
				document.body.style.backgroundImage = "url(" + bigBg.src + ")";
				
			}
			bigBg.src =  bgpath + backgrounds[rn] + ext;
	   }, 10000);
	}
	lowBg.src = bgpath + backgrounds[rn] + tag + ext
}