plugin to display ics-files in a calendar

hello,

I'm new to this forum and I've written my first plugin for jquery.
It works well, but I'm not sure, if the plugin-code fits into the recommendations of jquery.
It would be great, if someone could have a look at the code and tells me, what I have to change.

You can see an example on http://jsicalendar.sourceforge.net/.
The javascript code of the extension is here.

thanks kai pfeiffer