Show Intertop.ua product availability on click

check_availability.js

$('.item_img').click(function(e) {
  e.preventDefault();
  var product_id = $(this).attr('href').match(/\/(\d+)\.html/)[1]
  $.post('/shop/item/shops', {
    region_id: '***region***',
    size: '***size***',
    product_id: product_id,
  }, function(data) {
    console.log(product_id, data.length > 0);
  });
});