Add sliding animation to jquery insertafter and insertbefore

Question

How to add animation moving effect to up and down sort movement.

You can check the movement by clicking on the UP and DOWN text links.

Here is my code

$(document).ready(function(){
    $('.move-up').click(function(){
        if ($(this).prev())
            $(this).parent().insertBefore($(this).parent().prev());
    });
    $('.move-down').click(function(){
        if ($(this).next())
            $(this).parent().insertAfter($(this).parent().next());
    });
});

DEMO

Answer 1

just add the a sequence of hide and show, easy!

jQuery(html_usr).insertBefore( "#log_row" ).hide().show('slow');