gistfile1.txt

// The PHP

/**
 * Add primary item to cart (Ajax).
 */

function themeblvd_ajax_add_to_cart() {	
	if( isset($_POST['download_id']) && check_ajax_referer( 'edd_ajax_nonce', 'nonce' ) ) {
		global $post;
		if( ! edd_item_in_cart($_POST['download_id'] ) ) {
			$options = is_numeric( $_POST['price_id']) ? array('price_id' => $_POST['price_id']) : array();
			$key = edd_add_to_cart( $_POST['download_id'], $options );
			echo themeblvd_checkout_button();
			echo '[(=>)]';
			echo edd_get_cart_quantity();
			echo '[(=>)]';
			echo themeblvd_floating_cart( $_POST['current'] );
		} else {
			echo 'incart';
		}
	}
	die();
}
add_action( 'wp_ajax_nopriv_themeblvd_add_to_cart', 'themeblvd_ajax_add_to_cart' );
add_action( 'wp_ajax_themeblvd_add_to_cart', 'themeblvd_ajax_add_to_cart' );


// The JS
// edd_scripts.ajaxurl = http://wpjumpstart.com/wp-admin/admin-ajax.php, which is the virtual mapped domain.

jQuery(document).ready(function($){
	
	// Add Jump Start to cart
	$('.buy-jumpstart').click(function(){
	
		var el = $(this),
			added = el.closest('.nav-middle').find('.added'),
			item_download = el.attr('data-id'),
			current_page = el.attr('data-current'),
			item_price_id = false;
	
		$.ajax({
			type: "POST",
			url: edd_scripts.ajaxurl,
			data:
			{
		        action: 'themeblvd_add_to_cart',
		        download_id: item_download,
				price_id : item_price_id,
				current : current_page,
		        nonce: edd_scripts.ajax_nonce
	        },
			beforeSend: function()
			{
				el.addClass('loading').find('.loader').fadeIn();
				el.closest('li').css('position', 'relative').prepend('<div class="click-protect"></div>');
			},
			success: function(response)
			{	
				
			   	// Wait 1.5 seconds
				setTimeout(function () {
					
					var elements = response.split('[(=>)]');
					
					if( elements.length == 3 )
					{
					
						// Update "My Cart" Quantity
						$('#my-cart .cart-num').html(elements[1]);
						
						// Update floating shopping cart
						$('#floating-cart .ajax-mitt').html(elements[2]);
						
						// Replace Buy button with Checkout button
						el.closest('li').html(elements[0]);
						
						// Fade in and slide down success message
						added.css({
							'display': 'block',
							'opacity': 0
						}).animate({
							top: '+=20',
							opacity: 1
						}, 300, function() {
							setTimeout(function () {
								added.fadeOut();
							}, 2000);
						});
						
					}
					else
					{
						// Something went wrong, refresh the page.
						var url = window.location.href.split('?'), url = url[0];
						window.location.replace(url);
					}
					
				}, 1500);
				
			}
		});
		return false;
	});
});