[R] Fit Frechet Distribution

[riedwyl@giub.unibe.ch]

hello everybody
i want to use the maximum likelihood method to estimate FRECHET parameters of 
my sample data.
Should it work with fitdistr in the package MASS? 
I only find how to do it for GEV, Gumbel, and almost all other distributions, 
but FRECHET?
I would be very happy if somebody can tell me how to do fit the FRECHET 
distribution!
Thanks
Nadja Riedwyl