Load tracking pixel and JS on form submit

Hello Experts,

I have a form that on submit redirects to the same page but with the added #thank_you in the url.

Then I have this JS that checks if the form was submitted, and shows the thank you text:

var currentValue = window.location.hash.substr(1);
$(document).ready(function() {

  if(currentValue == "thank_you") {
    $(".takskrev").addClass("visible");
	$(".form").addClass("hidden");

}

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This works fine, but what I need to do next is add tracking pixel to the thank_you.

This is the code I have to add:

<script type="text/javascript">
var fb_param = {};
fb_param.pixel_id = 'xxxxxx';
fb_param.value = '0.00';
fb_param.currency = 'currency';
(function(){
  var fpw = document.createElement('script');
  fpw.async = true;
  fpw.src = '//connect.facebook.net/en_US/fp.js';
  var ref = document.getElementsByTagName('script')[0];
  ref.parentNode.insertBefore(fpw, ref);
})();
</script>
<noscript><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/offsite_event.php?id=xxxx" /></noscript>

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How can I fire this code inside the thank_you conditional?