how do i allow only numbers and "/"? and also...

[shortysbest]

I want to only allow birthdays to be entered like:

 

1/9/1992

or

11/19/1992

 

no other characters.

 

and i want to only allow the first part to be a number be between 1 and 12, and then the second only between 1 and 31.

 

could anyone help with any part of this? the first part is most important, but second part is nearly as important.

[.josh]

var someDate = "10/03/2010";
if (someDate.match(/^(0?[1-9]|1[012])\/(0?[1-9]|[12][0-9]|3[01])\/(19|20)[0-9]{2}$/)) {
  // valid
} else {
  // invalid
}

[shortysbest]

PERFECT. Thanks a lot. A lot more simple than I thought. >.<