WordPress Custom Login functions file

functions.php

if ( ! function_exists( 'ck_custom_login_css' ) )
{
	/**
	 * Load the custom login page CSS.
	 *
	 * @return void.
	 */
	function ck_custom_login_css()
	{
		echo '<link rel="stylesheet" type="text/css" href="'.get_stylesheet_directory_uri().'/login.css" />';
	}
}
add_action('login_head', 'ck_custom_login_css');

if ( ! function_exists('ck_rememberme_checked'))
{
	/**
	 * Checks the "remember me" by default.
	 *
	 * @return void
	 */
	function ck_rememberme_checked()
	{
		echo "<script>document.getElementById('rememberme').checked = true;</script>";
	}
}
add_action('login_footer', 'ck_rememberme_checked');

// Hides the login error message
add_filter( 'login_errors', create_function( '$a', "return null;" ) );

// Changes login logo URL to your homepage
add_filter( 'login_headerurl', create_function( '$a', "return '".get_bloginfo('url')."';" ) );

// Change logo link title to your site name
add_filter( 'login_headertitle', create_function( '$a', "return '".get_bloginfo('name')."';" ) );