How to remove the black border around <input type="image" src="icons/juUnpress.png" border="0" /> while unfocused?

I tried many ways but never success. Thanks for any help!

I searched a lot, it seems impossible to add a middle softkey in windget, isn't it?
Thanks for help.

Thanks for your help, I read the document andl also got more detail info in the following page.
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Howto launch a local app from widget? Thanks