WooCommerce: Update cart without page reload

updatecart.php

// Ensure cart contents update when products are added to the cart via AJAX (place the following in functions.php)
add_filter('add_to_cart_fragments', 'woocommerce_header_add_to_cart_fragment');

function woocommerce_header_add_to_cart_fragment( $fragments ) {
	global $woocommerce;
	
	ob_start();
	
	?>
	<a class="cart-contents" href="<?php echo $woocommerce->cart->get_cart_url(); ?>" title="<?php _e('View your shopping cart', 'woothemes'); ?>"><?php echo sprintf(_n('%d item', '%d items', $woocommerce->cart->cart_contents_count, 'woothemes'), $woocommerce->cart->cart_contents_count);?> - <?php echo $woocommerce->cart->get_cart_total(); ?></a>
	<?php
	
	$fragments['a.cart-contents'] = ob_get_clean();
	
	return $fragments;
	
}