Jayesh,
Notice that Robert has a '12s2' string which would return a value of 12
if you are using the VAL() function.
Actually Alan's answer would be a better way to go.
>Use VAL() function. VAL() returns zero if string is passed. You will have to check if the variable contains zero string. e.g. "0" or "0.00" etc.
Tom
Life happens, don't blink.