regex - Regular Expression for recognizing non-negative values 1..99 -

i'm looking regular expression can accept value 1 99 , not accept negative values. far, have:

"regex":/^[a-za-z0-9]{3}[0-9]{6,}$/, 

this should work:

[1-9][0-9]? 

if want whole string number, need ^$ included:

^[1-9][0-9]?$ 

that depends whether whole regexp, or want part of bigger regexp.