R help - Jul 2005 - how to code garch-t(1,1),egarch(1,1) and gjr(1,1)

hi,
I try to code garch-t(1,1),egach(1,1) and gjr(1,1) to estimate my data.
How I can code these model with my data (e.g. garch code is
y<-garch(x,order=c(1,1))
best regards,
luck