R help - Mar 2004 - Jackknife after bootstrap influence values in boot package?

Is there a routine in the boot package to get the jackknife-after- 
bootstrap influence values?  That is, the influence values of
a jackknife of the bootstrap estimates?  
I can see how one would go about it from the jack.after.boot code, but that
routine only makes pretty pictures.
It wouldn't be hard to write, but I find it hard to believe this 
isn't part of the package already.

Thanks for any help.

-Frank