facebook sharer.php is not showing image from URL

I m using http://tabbio.com/BarackObama URL to share on facebook http://www.facebook.c开发者_JAVA技巧om/sharer/sharer.php?u=http%3A%2F%2Ftabbio.com%2FBarackObama

but this url is not showing me an image of barak obama in facebook sharer.php page

guide me that if anything missing

thanks in advance

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You need to add meta tag og:image with url to image you want to show

 <meta property="og:image" content="http://url.to/image"/>

to head

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nawaz,

to share url with specific details you have to use OpenGraph tags http://developers.facebook.com/docs/opengraph/

Then, for debugging, use Facebook url linter http://developers.facebook.com/tools/debug

Good luck!