View inputTypeNumberPolyfill.js
* Stand alone polyfill allow only numbers on input of type number.
* While input filtering is already supported by default by some browsers, maximum length has not been implemented by
* any. This script will solve both issue and make sure that only digits can be entered in input elements of type
* number. If the optional attribute `max` is set, it will calculate it's length and mimic the `maxlength` behavior on
* input of type text.
* Supports: