[jQuery] Help to improve code

[jQuery] Help to improve code

Hey guys,
I've wrote a plugin basically it adds some html wrappers to an image and crop it, making a thumbnail effect.
Can you guys tell if It can be improved? I believe it's pretty stable now but I'd love to read your comments and ideas to enhace it.
jQuery thumbs
<a href="http://joanpiedra.com/jquery/thumbs/">http://joanpiedra.com/jquery/thumbs/</a>
Regards,
--
Joan Piedra || Frontend webdeveloper
<a href="http://joanpiedra.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
http://joanpiedra.com/</a>