Number input. HTML

Question

How can I create the number input in which user will be able to type only numbers which consist of five digits? I tried this but user still can type as many digits as he/she wan

Answer 1

/* 
   Pattern
   0-9 = Only number.
   1,  = Minimum length,
   5  = Maximum Length
*/
/*required="required" attribute also needed*/

Best way if you use JavaScript form validation. Thanks.