add_settings_field – not saving.

Hello there,

I am trying to figure this out for 2 hours now. When i create one settings field it works and i can display it on the website, however when i create a second one.. what ever i do i keep getting a empty value on save which results that the first also stops working.. i have tried everything but it’s making me crazy.

Can somebody help?

My code:

/*********************************************
 * Menu's
**********************************************/
function add_custom_settings_page() {
		add_options_page(
			'Demo theme options', 				// The text to be displayed in the browser title
			'Demo theme options', 				// The text to be used for the menu
			'manage_options', 						// The required capability of users to access this menu
			'demo-theme-options',				 // The slug by which this menu item is accesible
			'demo_theme_options_display' // The name of the function used to display the page content
		);
}
add_action('admin_menu', 'add_custom_settings_page');

/*********************************************
* Sections, Settings and fields
**********************************************/
function demo_theme_options() {

	// Define the settinge section
	add_settings_section(
		'footer_section', 							// The ID to use for this section in attribute tags
		'Footer options', 							// The title of the section rendered to the screen
		'demo_footer_display', 	// The function used to render the options for this section
		'demo-theme-options' 					// The ID of the page on which this section is rendered
	);

	// Define the settings field
	add_settings_field(
		'footer_message', 					// ID of the field
		'Theme footer message',		 	// The text of the label field
		'footer_message_display', 	// The callback function used to render the field
		'demo-theme-options', 			// The page on which we'll be rendering this field
		'footer_section' 						// The section to which we're adding the setting
	);

	// Register the 'footer_message' setting with the 'General' section
	register_setting(
		'footer_section', 	// Register the footer section
		'footer_message' 		// Register the ID of the field
	);
}
add_action('admin_init', 'demo_theme_options');

/*********************************************
* CALLBACKS
**********************************************/

function demo_theme_options_display() {
?>
		<div class="wrap">
			<h2>Demo theme options</h2>
			<form method="post" action="options.php">

			<?php
			// Render the settings for the settings section indentified as 'Footer Section'
			settings_fields('footer_section', 'footer_section_number');

			// Renders all of the settings for 'demo-theme-options' section
			do_settings_sections('demo-theme-options');

			// Add a submit button to save our changes
			submit_button();
			?>

			</form>
			<!-- form -->
		</div>
		<!-- .wrap -->
<?php
}

function demo_footer_display() {
	echo '<p>These options are designed to help you control what\'s displayed in your footer.</p>';
}

// Display the FIELD for the footer message inside general settings.
function footer_message_display() {
	echo '<input type="text" name="footer_message" id="footer_message" class="regular-text" value="' . get_option('footer_message') . '" />';
}

Thanks for the help!