Custom header for wordpress theme

I want to add custom header in theme creating in local server. I found code from page : http://codex.wordpress.org/Custom_Headers
I update my functions.php page :

add_theme_support( 'custom-header' );

$defaults = array(
	'default-image'          => '',
	'random-default'         => false,
	'width'                  => 0,
	'height'                 => 0,
	'flex-height'            => false,
	'flex-width'             => false,
	'default-text-color'     => '',
	'header-text'            => true,
	'uploads'                => true,
	'wp-head-callback'       => '',
	'admin-head-callback'    => '',
	'admin-preview-callback' => '',
);
add_theme_support( 'custom-header', $defaults );

$args = array(
	'width'         => 980,
	'height'        => 60,
	'default-image' => get_template_directory_uri() . '/images/headers/jp-mountain@2x.jpg',
);
add_theme_support( 'custom-header', $args );

I also edit in header.php : <img src="<?php header_image(); ?>"  alt="" />

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but still not finding Appearance-> Header Screen.

Please help as soon as possible.
Thanks in advance.

saanadil

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