Here's a more complete example of a click-through ad script

Here's a more complete example of a click-through ad script that includes some best practices for tracking clicks and ensuring the ad is accessible:

<!-- HTML code for the ad -->
<a href="https://www.example.com/ad-page" id="ad-link" aria-label="Advertisement" target="_blank">
  <img src="/ad-image.jpg" alt="Advertisement">
</a>

<!-- JavaScript code for the ad -->
<script>
  // Get a reference to the ad link
  var adLink = document.getElementById('ad-link');

  // Add a click event listener to the ad link
  adLink.addEventListener('click', function(event) {
    // Track the click using analytics code or ad platform code
    // ...

    // Open the ad destination URL in a new tab
    var adUrl = adLink.href;
    window.open(adUrl, '_blank');

    // Prevent the default behavior of the link
    event.preventDefault();
  });
</script>

Let's break down the code:

• The a element includes an href attribute with the URL of the ad destination, an id attribute for targeting the element with JavaScript, an aria-label attribute for accessibility, and a target="_blank" attribute to open the ad in a new tab. The img element includes an alt attribute for accessibility.

• The JavaScript code gets a reference to the ad link using document.getElementById(), and adds a click event listener to it using addEventListener(). Inside the event listener, you can add tracking code to track the ad click, either using analytics code or ad platform code.

• The window.open() method opens the ad destination URL in a new tab, using the _blank value for the target parameter. This ensures that the user stays on your website while the ad opens in a new tab.

• Finally, we prevent the default behavior of the link using event.preventDefault(), to avoid any unintended actions from the user clicking on the ad.