iphone "Go" key pad button and android "Enter" keypad button

I have a site which is optimized for mobile devices. I also have a sign in page on this site. Once a user fills the credentials he/she can sign in using a sign in button. but I also want that the same operation happen when they tab the "Go" button or "Enter" button on the key pad.

how can we implement that?

the other thing al开发者_如何转开发so, on iPhone how you can change the key pad type that pop up when a text field is active? I know if you want to get a number key pad you set the type="tel" for the tribute of the input tag.

how about for the other types of key pads?

tanx

For the first part - a standard <input type="submit"/> will be activated by default when the "Go"/"Enter" button will be pressed, as with the "Enter" key will work on a desktop browser.

For other special input types, there are those:

<input type="email">
<input type="url"><!-- web address -->
<input type="number" min="0" max="10" step="2" value="6"><!-- dial -->
<input type="range" min="0" max="10" step="2" value="6"><!-- slider -->
<input type="search"><!-- quess what? -->

They are documented well on Dive Into HTML5 page.

Important: remember that <input> elements have to be enclosed inside a <form> to work!