<!doctype html> <html> <head> <meta charset="utf-8"> <title>GopherJS Focus/Blur of DOM Element Demo</title> </head> <body> <input id="i1" type="text" value="" autofocus> <br> <input id="i2" type="text" value=""> <br> <button id="btn" type="button">click me to change focus!</button> <script src="app.js"></script> </body> </html>