Tryit Editor v1.7

Source Code:

Result:

<!DOCTYPE html>
<html>
<head>
<script>
function goodbye()
{
alert("Thank you for visiting W3Schools!");
}
</script>
</head>

<body onunload="goodbye()">

<h1>Welcome to my Home Page</h1>
<p>Close this window or press F5 to reload the page.</p>

</body>
</html>

Edit the code above and click "Submit Code" to see the result.

W3Schools.com - Try it yourself

Source Code:	Result:
<!DOCTYPE html> <html> <head> <script> function goodbye() { alert("Thank you for visiting W3Schools!"); } </script> </head> <body onunload="goodbye()"> <h1>Welcome to my Home Page</h1> <p>Close this window or press F5 to reload the page.</p> </body> </html>
Edit the code above and click "Submit Code" to see the result.	W3Schools.com - Try it yourself