Is there any free Jquery plugin that can do the same stuff as the one in this one?

I have a requirement to filter the search results into categories. i like the script here http://codecanyon.net/item/simple-content-sorting/full_screen_preview/472808?ref=lvraa
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but what I'm doing is an academic project and I'm not in a position to buy it. Is there any free script available out there that does the similar stuff? Thanks in advance!