iPhone selects a Shift key when focusing on a HTML input field. How to turn this off?

When I'm focus on an input field on an iPhone, the Shift key is turned on to make sure that the input starts with upper case. Is there a way to turn off this functionality and no开发者_如何转开发t have the Shift key when I focus on a field?

I understand why this might be good in some cases but in my case this is a user name or email field, most of which don't start with upper case letter.

Update: The answer lead me to Safari Web Content Guide page which I'll be referencing more often from now on.

You can solve it by setting autocapitalize as off

<input type="text" name="test1" autocapitalize="off"/>

and also Set the autocorrect attribute of your textbox as off to turn off the auto correct feature.

<input type="text" name="test1" autocorrect="off"/>

There is a proprietary attribute for that: autocapitalize (on/off)

<input type="email" name="username" autocapitalize="off">

Please note that this is not a W3C standard and will result in invalid code.