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function woo_metaboxes_add( $woo_metaboxes ) {
	
	if ( get_post_type() == 'post' || ! get_post_type() ) {
			// Woo Metabox Options
			$woo_metaboxes[] = array(
				'name' => 'url',
				'label' => __( 'Slide URL', 'woothemes' ),
				'type' => 'text',
				'desc' => sprintf( __( 'Enter an URL to link the slider title to a page e.g. %s (optional)', 'woothemes' ), 'http://yoursite.com/pagename/' ),	
			);

	    return $woo_metaboxes;
	}

}