$(document).ready(function () {
    
    $('.sidebar-box a').last().css('border', 'none');

    for (var i = 0; i < headerImageUrls.length; i++) {

        $('#header').prepend('<img id="header-image-' + i + '" src="' + headerImageUrls[i] + '" style="position: absolute;' + (i > 0 ? " display: none" : "") + '" />');

    }

    if (headerImageUrls.length > 1) {
        setTimeout('swapHeaderImage()', 6000);
    }
});

function swapHeaderImage() {

    $('#header-image-' + headerImageIndex).fadeOut(1000);

    headerImageIndex++;

    if (headerImageIndex == headerImageUrls.length) {

        headerImageIndex = 0;
    }

    $('#header-image-' + headerImageIndex).fadeIn(1000);

    setTimeout('swapHeaderImage()', 6000);
}