Customization of WordPress Part-1

We have been developing a new website site built upon WordPress, and figure out some skills to modify the configuration of WordPress as a customization design. The below is described what we’ve been done recently.
1. Customizing Login Page
The default page looks as below

螢幕快照 2013-11-06 下午4.44.29We need to change the Logo, default Link and ALT text when moving your mouse above the logo.

NOW, the first to edit the file of “functions.php” at your selected theme folder; for example, I am using TwentyEleven; well, the file is located at “(MyWebPageFolderLocation)/wp-content/themes/twentyeleven/functions.php”

Add the below lines to “functions.php”, and upload your customized login/logo image (wp-login-logo.png) to the “images” folder under the folder.

function my_login_logo() { ?>
    <style type="text/css">
        body.login div#login h1 a {
            background-image: url(<?php echo get_bloginfo( 'template_directory' ) ?>/images/wp-login-logo.png);
        }
    </style>
<?php }
add_action( 'login_enqueue_scripts', 'my_login_logo' );

2. Customizing WordPress Admin Footer and Header
3. Removing Admin Top bar WordPress Icon and Menu
4. Customizing WordPress page footer