[jQuery] Index of Parent TD

Hi there,
I have a link which sits inside a td within a tr within a table. What
I would like to do is find out which td (which column) in the table
this link is within - I need to find the column index.
Once I have this I can then remove the column from the table.
Any ideas on how to do this? I've tried the core index - but to no
avail.
Thanks!