[jQuery] regex in selector

[jQuery] regex in selector


How do you put regex in a selector.....
been try things like this
$('.Round_gen'+ (/$[1-9][0-9]?/) +'').each(function() {. . .etc
to target classes named
.Round_gen0
.Round_gen99
really any number after .Round_gen
thanks for the help
jeremyBass