focus to the beginning of the textarea on iphone?

The function focus() doenst开发者_C百科 seem to work for iphone? I need something similar to what they have done for gmail.com when you do a reply.

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If you're targeting iPhone/Android (... and don't have to worry about Windows Phone 7 Phone 7 Phone etc.) you can take advantage of the HTML5 autofocus attribute.

So with some markup like this:

<textarea id="the-textarea" autofocus></textarea>

You get an auto-focused textarea.

If you need to position the caret inside the textarea you can use its setSelectionRange method:

$("#the-textarea")[0].setSelectionRange(0, 0);

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If you are only targeting Safari, you might try checking out the Safari-specific documentation: http://developer.apple.com/safari/

Firebug (Firefox extension) can also be very helpful in looking at how other developers are implementing things on their sites.