Getting rid of the first letter in field on condition

[smeshy123]

I'm trying to get rid of the first letter in a certain field, but only if that letter is a -. I have 4000 entries so I can't do it by hand. Anyone know the kind of calculation I could write to do this?

Thanks,

Smeshy

[comment]

Try:

Right ( Yourfield ; Length ( Yourfield ) - ( Left ( Yourfield ; 1 ) = "-" ) )