var total;
var objImage;
var allObjects;
var delay = 4000;

$(document).ready(function() {
    init();
}); 

function init() {
    allObjects = $('#banner_container').children();
    if (allObjects.length > 1) {
        total = allObjects.length;
        objImage = 1;
        $.each(allObjects, function() {
           $(this).css({ 'position': 'absolute', 'z-index':((total + 1) - objImage) , 'height': '120px' });
           $(this).attr('id', 'sc-' + objImage);
           objImage += 1;
       });
       objImage = 1;
       setTimeout('scrollMe("#sc-' + objImage + '")', delay);
    }
}

function scrollMe(objName) {
    var e = $(objName);
    e.animate({
        top: '-120'
    }, 1000, 'linear', function() {
        objImage >= total ? objImage = 1 : objImage += 1;
        $.each(allObjects, function() { var zi = $(this).css('z-index'); zi += 1; $(this).css({ 'z-index': zi }); });
        e.css({ 'top': '0px', 'z-index': '1' });
        setTimeout('scrollMe("#sc-' + objImage + '")', delay);
    });

}