adding administration menus

Hello,
I’m working on adding some Theme Options on a new theme I’m creating but I have a little problem creating more than one page for them.
I’d like to have 2 or more pages for better organization but I’m not able to make it work. All my options appear on the same page although I have managed to create 2 menu points under “Appearance”
This is the code that I have upto now.

<?php
$themename = "someThemeName";
$shortname = "someShortName";
$themeOptions   = array (

//arrays, arrays, arrays

);

$cartOptions   = array (

//arrays, arrays, arrays

);

function mytheme_add_themeOptions_admin() {

    global $themename, $shortname, $themeOptions;

    if ( $_GET['page'] == basename(__FILE__) ) {

        if ( 'save' == $_REQUEST['action'] ) {

                foreach ($themeOptions as $value) {
                    update_option( $value['id'], $_REQUEST[ $value['id'] ] ); }

                foreach ($themeOptions as $value) {
                    if( isset( $_REQUEST[ $value['id'] ] ) ) { update_option( $value['id'], $_REQUEST[ $value['id'] ]  ); } else { delete_option( $value['id'] ); } }

                header("Location: themes.php?page=functions.php&saved=true");
                die;

        } else if( 'reset' == $_REQUEST['action'] ) {

            foreach ($themeOptions as $value) {
                delete_option( $value['id'] ); }

            header("Location: themes.php?page=functions.php&reset=true");
            die;

        }
    }

	add_theme_page($themename." Theme Options", "".$themename." Theme Options", 'edit_themes', basename(__FILE__), 'themeOptions_admin');

}

function mytheme_add_cartOptions_admin() {

    global $themename, $shortname, $cartOptions;

    if ( $_GET['page'] == basename(__FILE__) ) {

        if ( 'save' == $_REQUEST['action'] ) {

                foreach ($cartOptions as $value) {
                    update_option( $value['id'], $_REQUEST[ $value['id'] ] ); }

                foreach ($cartOptions as $value) {
                    if( isset( $_REQUEST[ $value['id'] ] ) ) { update_option( $value['id'], $_REQUEST[ $value['id'] ]  ); } else { delete_option( $value['id'] ); } }

                header("Location: themes.php?page=functions.php&saved=true");
                die;

        } else if( 'reset' == $_REQUEST['action'] ) {

            foreach ($cartOptions as $value) {
                delete_option( $value['id'] ); }

            header("Location: themes.php?page=functions.php&reset=true");
            die;

        }
    }

	add_theme_page($themename." Cart Options", "".$themename." Cart Options", 'edit_themes', basename(__FILE__), 'cartOptions_admin');
}

function themeOptions_admin() {

    global $themename, $shortname, $themeOptions;

    if ( $_REQUEST['saved'] ) echo '<div id="message" class="updated fade"><p><strong>'.$themename.' settings saved.</strong></p></div>';
    if ( $_REQUEST['reset'] ) echo '<div id="message" class="updated fade"><p><strong>'.$themename.' settings reset.</strong></p></div>';

?>
<div class="wrap">
<!-- my html output -->
</div>
<?php
}

function cartOptions_admin() {

    global $themename, $shortname, $cartOptions;

    if ( $_REQUEST['saved'] ) echo '<div id="message" class="updated fade"><p><strong>'.$themename.' settings saved.</strong></p></div>';
    if ( $_REQUEST['reset'] ) echo '<div id="message" class="updated fade"><p><strong>'.$themename.' settings reset.</strong></p></div>';

?>
<div class="wrap">
<!-- my html output -->
</div>
<?php
}

add_action('admin_menu', 'mytheme_add_themeOptions_admin');
add_action('admin_menu', 'mytheme_add_cartOptions_admin');

Please, can anybody help?