AJAX add to cart button on Shop page in WooCommerce

AJAX add to cart button on Shop page in WooCommerce.php

WTF: Get the AJAX add to cart button on Shop/Category/Search pages in WooCommerce. (AJAX works only for simple products)
HOW: 
	1) create a directory, name it "woocommerce" put it in your theme root.
	2) copy/pasta from woocommerce plugin directory the content-product.php file
	3) at the end of the (content-product.php) file, paste the code below:

<?php
global $product;

echo apply_filters( 'woocommerce_loop_add_to_cart_link',
	sprintf( '<a href="%s" rel="nofollow" data-product_id="%s" data-product_sku="%s" class="button %s product_type_%s">%s</a>',
		esc_url( $product->add_to_cart_url() ),
		esc_attr( $product->id ),
		esc_attr( $product->get_sku() ),
		$product->is_purchasable() ? 'add_to_cart_button' : '',
		esc_attr( $product->product_type ),
		esc_html( $product->add_to_cart_text() )
	),
$product );
?>