<?php
global $wp_version;
if (version_compare($wp_version,"3.0","<")) { /*provides the current WordPress version in standard format*/
    add_action('admin_init', 'setup_meta_boxes', 1); /*for versions < 3.0*/
} else {
    add_action('add_meta_boxes', 'setup_meta_boxes'); /*for versions >=3.0*/
}

function setup_meta_boxes() {
    add_meta_box('case-study-color-sceme', 'Color Scheme', 'render_html', 'work', 'normal', 'default');
}

function render_html($post, $params) {
    echo '<p>Test metabox content</p>';
}

    // Use nonce for verification
    wp_nonce_field( plugin_basename(__FILE__), 'color-scheme-meta' );
}

/* Do something with the data entered */
add_action('save_post', 'saveMyData');

function saveMyData( $post_id ) {
    // verify if this is an auto save routine. If it is, our form has not been submitted, so we dont want to do anything
    if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return $post_id;

    if ( !wp_verify_nonce( $_POST['color-scheme-meta'], plugin_basenamemyName = $_POST['myname'];
 $myAge = $_POST['myage'];

 /*Now you can $myName and $myAge to a custom table or to meta options using add_post_meta()*/
}
?>