accept only numbers onKeyPress without multiple dashes

[chadrahul]

accept only numbers onKeyPress without more than 2 dashes (max 2, and no 2 dashes together). 11 max total length
i.e.
123-345-567 YES
Or
-123345567- YES
Or
--123456789 NO
Or
As1234567 NO
Or
#355534gg NO
Etc.

[gits]

what do you have so far?

kind regards