Contact Form on single page website

Sorry. I think I made a mistake by suggesting return false. The preventDefault approach is what you need. I tested this out with the following example: https://www.kirupa.com/html5/examples/contactform_test.htm

The code for both the form and the JavaScript looks as follows:

<form id="contactForm" method="POST">
	<div>
		<p>Name</p>
		<input name="name" type="text"> <br> </div>
	<div>
		<p>E-Mail (Optional)</p>
		<input name="email" type="text">
	<br>
	</div>
	<div>
		<p>Comment</p>
		<textarea cols="30" name="comment" rows="9"></textarea> 
		<br> </div>
	<div>
		<input name="submit" type="submit" value="Send!"> </div>
</form>
  
<script>
  var theForm = document.querySelector("#contactForm");
  theForm.addEventListener("submit", handleSubmit, false);

  function handleSubmit(e) {
    e.preventDefault();
  }
</script>

Notice that I listen for the submit event on the form and then call preventDefault in the event handler for that event. Let me know if you have any questions.

Cheers,
Kirupa