Wordpress: admin page favicon

gistfile1

/* Admin Page Fivicon ******************************************************************************
** http://wp.tutsplus.com/tutorials/creative-coding/using-conditional-tags-to-supercharge-your-blog/
** 관리자 페이지 파비콘 적용 ************************************************************************* */
function admin_favicon() {  
    if(is_admin()) {  
        echo '<link rel="shortcut icon" href="'.get_bloginfo('url').'/favicon.png" />';  
    }  
}  
add_action('admin_head','admin_favicon');