var totalslides = 6;
var slidenumber = 2;
for (i=1;i<=totalslides;i++) {
	  var img = new Array();
	  image = new Image();
	  img.push(image);
	  img[img.length-1].src = "/images/headerbackground"+i+".jpg";
}

window.onload = function() {
	setInterval(changeSlide,5000);
}

function changeSlide() {
	$("#image1").fadeToggle("slow", "linear", switchBackground);
	$("#image2").fadeToggle("slow", "linear");
}

function switchBackground() {
	slidenumber++;
	if(slidenumber > totalslides) {slidenumber = 1;}
	if(document.getElementById("image1").style.display == "none") {
		document.getElementById("image1").style.backgroundImage = "url(/images/headerbackground"+slidenumber+".jpg)";
	} else {
		document.getElementById("image2").style.backgroundImage = "url(/images/headerbackground"+slidenumber+".jpg)";
	}
}