var backgroundImages = ['/file.axd?pointerid=d3ba00bec1a640d49db6dee8873874ba&versionid=c67bed991752422f8bc548bcae4f173b&w',
'/file.axd?pointerid=8b5e5d9b79924ef788af3c9f783a5416&w',
'/file.axd?pointerid=a3a169ddacb6447f88dc2d03a658bee4&w',
'/file.axd?pointerid=8ec696081c6a481aa7a8991c704ad4b5&w',
'/file.axd?pointerid=51f78f7fc28f448d83e14783c5f342f3&w',
'/file.axd?pointerid=1de00a8f59424d599471d79547690e1d&w',
'/file.axd?pointerid=2cc1b661d306465987c8adeb20f5c150&w',
'/file.axd?pointerid=82f846846c9840b2ba3f81da8c522f5f&w'];
var counter = Math.round(Math.random() * backgroundImages.length);
simplePreload(backgroundImages);



$(document).ready(function() {
    //changeBgImage();
    $(document).everyTime(5000, 'swapImages', changeBgImage, 0, false);
});

function changeBgImage() {
$("body").css({background:'#C0C4C3 url('+backgroundImages[(counter++ % backgroundImages.length)]+') no-repeat 0 0'});
}

function simplePreload(arr) {
    document.imageArray = new Array(arr.length);

    for (var i = 0; i < arr.length; i++) {
        document.imageArray[i] = new Image;
        document.imageArray[i].src = arr[i];
    }
}