Is there any way to customize the PageNofM field in CR so i can change the separator to something else not "of"?

I've made a formula with syntax:
PageNumber &"/"& TotalPageCount

but the result is something like these:
1,00/3,00

How do I format the formula so the output would be:
1/3

Im using Crystal Report installed with VS 2005 Professional Edition

Thanx,