simple implementation of Firefox search plugin button on WP site

Pretty simple. I need a button which if pressed adds a specific url as a Firefox search engine (you know the small one next to the normal url bar). The button should be inserted to a WP blog post.

I will provide you with a url to a site which has a button exactly like this.

It's a rather small job for a skilled coder so I am offering $10 through moneybookers.com.

Send me a PM.

Thanks