FooBox V2 or Free check and notice

plugin.php

<?php
/*
 *  This checks whether either version of FooBox --
 *  Free or Premium -- is activated. If not, it throws
 *  An admin notification, only for users who can
 *  activate plugins.
 */
 
function fooboxnotpresent_admin_notice() {
		if 	( class_exists('Foobox_Free') || class_exists('fooboxV2')) {
		} else {
			if (current_user_can( 'activate_plugins' )) {
		?>
			
			<div class="error">
				<h2>FooBox does not seem to be activated</h2>
				<p>Easy Thumb Gallery basically does nothing without FooBox. <br />
				Please go to "Plugins > Add New" and Search for "FooBox" to add the "FooBox Image Lightbox" plugin.</p>
			</div>
		<?php
		}
		}
		}
add_action( 'admin_notices', 'fooboxnotpresent_admin_notice' );

?>