Remove leading zeroes if it is number

Hi,

In the message mapping, idoc to structure,

idoc field of type CHAR, length 10.

possible values in this field are:

1003

PD01

both alphanumeric. Value will be always 4 characters max.

if it is numeric, ex:1003, it is showing with leading zeroes as,

0000001003. But i have to send only 1003, without leading zeroes.

if it is alphanumeric, no issue, it is always left justified & shows only PD01.

i tried to use arithmetic function, ROUND, this is ok for numeric values, but, data will be both. Even i can not use substring, bcoz, numeric value is right justified & alphanumeric is left justified.

If it has to solve by any UDF, plz share the code & the steps to fulfill the same with screen shot if possible.

tnx n rgds,

balu