[R] Two graphs of different sizes on one devise. How to?

[wolski]

I am trying to plot two graphics with different sizes to one devise.

par(mfrow=c(1,2))
# is set the size for the first graphic
par(fig=c(0,7,0,10)/10)
#and plot it
plot(1,1)
#then i set the size 
par(fig=c(7,10,0,10)/10)

#and plot the second one
plot(2,2)


Unfortunately when i plot figure two figure 1 disapear.
How to avoid these?

/Eryk.