Add Help menu

function addHelpMenu()
{
    $objScreen = get_current_screen();
    if ($objScreen->post_type == 'post') {
        if (FALSE !== $strHelpContents = file_get_contents(dirname(__FILE__).DIRECTORY_SEPARATOR.'views'.DIRECTORY_SEPARATOR.'sampleHelp.html')) {
            $objScreen->add_help_tab(array(
                'id' => 'sample_help_tab',
                'title' => 'Sample Help Tab',
                'content' => $strHelpContents,
            ));
        }
    }
}

add_action('load-post.php','addHelpMenu');
add_action('load-post-new.php','addHelpMenu');