buybooks.js

var productIds = [];
$("div.search-result")
    .filter(function() {
        return $(this).find("div.sale-price span.money").text() == '$0.00' && $(this).find("button.orange").text() == 'Add to cart';
    })
    .each(function() {
        productIds.push($(this).find("button[title='Add to cart']").parent().attr('action').replace('/buy/', ''));
    });
var buyAllUrl = 'https://www.logos.com/buy/' + productIds.join();
console.log(buyAllUrl);
window.open(buyAllUrl);