Question

Show image very slowly … after page is completely loaded….

That is ,

fade in Effect for the image, but this image should show very slowly page load is completed….

Answer 1

Assuming you meant onload (all assets have downloaded) and not DOMReady (the page itself is ready to go):

$(window).load(function () {
    $('img').fadeIn(10000); // 10 seconds
});

Code untested. Don’t forget to set images to have an opacity of 0 in your CSS when you start.