var imageNumber = Math.random();
var image = new Array();

imageNumber = Math.floor(imageNumber * 5);

image[0] = "http://c1522072.cdn.cloudfiles.rackspacecloud.com/homepage1.jpg";
image[1] = "http://c1522072.cdn.cloudfiles.rackspacecloud.com/homepage2.jpg";
image[2] = "http://c1522072.cdn.cloudfiles.rackspacecloud.com/homepage3.jpg";
image[3] = "http://c1522072.cdn.cloudfiles.rackspacecloud.com/homepage4.jpg";
image[4] = "http://c1522072.cdn.cloudfiles.rackspacecloud.com/homepage5.jpg";


function imgch() {
   
    document.getElementById("homePageImage").src = image[imageNumber++];
    if (imageNumber == 5) {
        imageNumber = 0;
    }
    setTimeout("imgch()", 10000);
}

window.onload = function() { 
    imgch()
}