Hi all, I want to write regular expression for checking the string format entered by user. the allowed formats are examples: 10 10, 10,12-10 12-10 that is the valid strings are: 1. only integer 2. an integer, range of integers example 3 and no other characters must be allowed. thanks babu. --------------------------------- How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos. Get Yahoo! Photos