Wordpress Admin Manu

//This is for a option panel menu
function mytheme_admin_menu(){
	add_menu_page('MyTheme Options Page', 'MyTheme Options', 'manage_options', 'myoptions', 'myoption_cb', get_template_directory_uri() . '/img/search_icon.png');

	add_submenu_page('myoptions', 'MyTheme Options Page', 'Generel Options', 'manage_options', 'myoptions', 'myoption_cb');

	add_submenu_page('myoptions', 'MyTheme Generel Options', 'Header Options', 'manage_options', 'myoption_generel', 'myoption_generel_cb');
}
add_action('admin_menu', 'mytheme_admin_menu');

function myoption_cb(){ ?>
	<h2>Hollo World</h2>
<?php }


function myoption_generel_cb(){ ?>
	<h2>Hollo World Subpage</h2>
<?php }






/*
There are three hooks. 
	admin_menu, for WP admin user with his capability
	user_admin_menu, for a user administration page with his capability
	network_admin_menu, for a network administration page with his capability
*/
add_action('admin_menu', 'my_plugin_menu');

function my_plugin_menu() {

	add_menu_page('Add Menu Page', 'Add Menu Page', 'manage_options', 'my-top-level-slug');

	add_submenu_page('my-top-level-slug', 'Add Submenu Page One', 'Add Submenu Page One', 'manage_options', 'my-top-level-slug');

	add_submenu_page('my-top-level-slug', 'Add Submenu Page Two', 'Add Submenu Page Two', 'manage_options', 'my-secondary-slug');


	add_dashboard_page('Add Dashboard Page', 'Add Dashboard Page', 'read', 'my-unique-identifier', 'my_plugin_function');

	add_management_page( 'Add Management Page', 'Add Management Page', 'manage_options', 'my-unique-identifier', 'custom_permalinks_options_page' );

	add_theme_page('Add Theme Page', 'Add Theme Page', 'edit_theme_options', 'my-unique-identifier', 'my_plugin_function');

	add_options_page( 
		'Add Options Page',
		'Add Options Page',
		'manage_options',
		'my-plugin.php',
		'my_plugin_page'
	);
}