jquery plugin to display a 'clear' button in a search input box

I am having trouble trying to find something I know that does exist. In some forms your can clear your textbox by clicking on a 'cross'. It looks like this

I am looking for a JQuery plugin that can add that to a textbox for me. Any 开发者_StackOverflow中文版help is appreciated.

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Hows this for an option:

http://jsfiddle.net/ajthomascouk/hQLzX/

So basically i've enclosed the input and img inside a span, which will act as the parent.

UPDATE

I've improved my answer - http://jsfiddle.net/ajthomascouk/apgws/

Still does the same thing except now you dont have to hard code it, jQuery will do it.