Edit in JSFiddle

$(document).ready(function () {
            $("#buttonHide").click(function () {
                $("#form").fadeOut("slow", function () {
                    alert("FadeOut done !!!");
                });
            });
            $("#buttonShow").click(function () {
                $("#form").fadeIn(1000, function () {
                    animate();
                });
            });
        });
        function animate() {
            alert("FadeIn Done !!!");
        }
<html>
    <head>
    <title>fade in jQuery</title>
    </head>
    <body>
    <fieldset id="form">
    <legend>Form</legend>
    <table>
    <tr>
    <td><label>Name:</label></td>
    <td><input type="text" id="txtName"><td>
    </tr>
    <tr>
    <td><label>Age:</label></td>
    <td><input type="text" id="txtAge"><td>
    </tr>
    <tr>
    <td><label>Address:</label></td>
    <td><input type="text" id="txtAddress"><td>
    </tr>
    </table>
    </fieldset>
    <div id="buttonDiv">
    <input type="button" id="buttonHide" value="Fade Out"/>
    <input type="button" id="buttonShow" value="Fade In"/>
    </div>
    </body>
    </html>
fieldset
    {
    width:300px;
    margin-left:100px;
    }
    #buttonDiv
    {
    margin-left:100px;
    }