Approximate standard error for variance component with lmer

Hi
I am wondering if it is possible to compute approximate standard error
for variance component as proposed by Fischer et al 2004 using lmer. 

Thanks

Julien

Fischer, TM., Gilmour, AR. and Werf, JHVD. (2004). Computing approximate
standard errors for genetic parameters derived from random regression
models fitted by average information REML. Genetics Selection Evolution
36, 363-369.

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Julien Martin
Candidat au Doctorat
D?partement de Biologie
Universit? de Sherbrooke
Sherbrooke, Qc, Canada