discriminant analysis

Hello,

I have run a discriminant analysis (with lda() from the MASS package) 
but I can't find a way to examine the p-values for the discriminant 
functions. I would like to calculate a Wilk's lambda and then the 
Bartlett's V statistic which is distributed as a chi squared and test 
its significance, but I haven't found out how to do so. Can anyone help?

Thank you,
Janke ten Holt.