[R] y-axis in histograms

[Michael Graber]

Dear R- list,
I have some data to present with histograms. Therefore I used hist(...). 
I have few values with almost 80% of
the frequencies (totaly 800) and some other values with low frequencies 
( totaly 5 -10 )
that I want to emphasize. Therefore I want to "cut" the y-axis on 100, 
but I
don't know how to deal with this.

Thanks in advance,

Michael Graber