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<!DOCTYPE html> <html> <body> <p>Click the buttons to create a KEYGEN element, one with autofocus and one without autofocus.</p> <button onclick="myFunction()">Keygen with autofocus</button> <button onclick="myFunction2()">Keygen without autofocus</button> <br> <script> function myFunction() { var x = document.createElement("KEYGEN"); x.setAttribute("autofocus", "autofocus"); document.body.appendChild(x); } function myFunction2() { var y = document.createElement("KEYGEN"); document.body.appendChild(y); } </script> </body> </html>