var CurrentImage = 1;
var Totallmages = 5;
var MontageImages = new Array();
var RocketImages = new Array();

MontageImages[0] = "url(/assets/images/index-right.jpg)";
MontageImages[1] = "url(/assets/images/index-right-2.jpg)";

RocketImages[0] = "/assets/images/rocket-2.gif";
RocketImages[1] = "/assets/images/rocket-1.gif";

Event.observe(window, 'load', function() {
    var swap=setInterval('pictureSwap()', 1500);
});

function pictureSwap()  {
    var IndexDiv = document.getElementById('IndexRightCol');
    var Rocket = document.getElementById('rocket');
    
    IndexDiv.style.backgroundImage = MontageImages[CurrentImage];
    Rocket.src = RocketImages[CurrentImage];
	CurrentImage++;
	if(CurrentImage > 1)   {
        CurrentImage = 0;
    }
}