page range(1,2-3,5) regular expression for textbox using javascript on button click

Question

page range(1,2-3,5) regular expression for textbox using javascript on button click

Answer 1

options to allow a.1 b.1,2 c.1,1-2 d.1,2-3,4

Answer 2

i need to validate textbox like 1,2-3,4 like that means print page values eg., it allows like 1 12 1,3 1,1-2 1,2,3 1,1-2,4 like all these are allowed not allowed 1,

Answer 3

Cannot understand your question. Please elaborate it properly.

Thank you.