Require all fields in a form or let some be exempt

This JavaScript can be used for almost any application of an Html form to make certain that a user fills in some or all required elements. There is an array inside of the required() function that will accept string values of which element names (on the form) that you would like exempt from the required-requirement. The only other setting that is needed to run this script is a variable inside of the required() function that needs to be set to the name of the form you want to validate (as a string). There is also an alert that can be customized to tell the user (after so many tries) that certain elements of the form are required (you can easily change the message) and it then sets the focus of the form to the element in the form that needs their attention. The code is commented (pretty well I think) but if you have any questions feel free to email me.