jQuery(document).ready(function() {
    setTimeout("initBanner()", 1500);
});

function initBanner() {
    setTimeout("getBannerData()", 2000);
}

function getBannerData() {
    jQuery.ajax({
        url: '/wp-content/themes/griffin/bannerimg/fadebanner.php',
        success: function(imgurl) {
            jQuery('#fadebanner div').fadeOut(1500, function() {
                jQuery(this).css('background-image', 'url(\'' + imgurl + '\')').fadeIn(1500, function() {
                    initBanner();
                });
            });
        }
    });
}