in crsytal reprot i arrive the total i want that total to be in words

Question

in crystal report i arrive the total,from that i want the total to be in words how to do.


example

SNO       Particulars     Amt

1           A                  100

2           B                  200

3           C                  300


           Total              600


Rupees (Six Hundred only)


From the above i want total rs 600 in words (Six Hundred only)

how to do .please send the code.