Custom Post Icons

custom-post-icons.php

function wpsc_tutorial_icons() {
	global $post_type;
	?>
	<style>
	<?php if (($_GET['post_type'] == 'tutorial') || ($post_type == 'tutorial')) : ?>
	#icon-edit { background:transparent; background-image: url('<?php echo plugins_url('images/tutorial.png', __FILE__) ?>') no-repeat !important; }		
	<?php endif; ?>
	#adminmenu #menu-posts-tutorial div.wp-menu-image{background:transparent; background-image: url('<?php echo plugins_url('images/tutorial.png', __FILE__) ?>') no-repeat !important;}
	#adminmenu #menu-posts-tutorial:hover div.wp-menu-image,#adminmenu #menu-posts-tutorial.wp-has-current-submenu div.wp-menu-image{background:transparent; background-image: url('<?php echo plugins_url('images/tutorial.png', __FILE__) ?>') no-repeat !important;}	
</style>
<?php
}

add_action('admin_head', 'wpsc_tutorial_icons');