Hiding the keyboard

After input in a textfield has been completed, I would like to have the keyboard automatically hidden.
I tried using the setfocus on a button, but on iOS browsers this does not seem to work.
Can anyone tell me how to hide the keyboard?

http://stackoverflow.com/questions/2520650/how-do-you-clear-the-focus-in-javascript

Thanks Michel,

adding;

Button1.ExecuteJavaScript(“if (document.activeElement != document.body) document.activeElement.blur();”)

to the Button1.shown event works like a charm!