Question

I am using the jquery validate function and plugin located here.
http://docs.jquery.com/Plugins/Validation

I am going thrue the js file and i have found the email validation block that makes sure it is a valid email, the thing is, i want to only allow .edu emails. I have no idea where to start.

Answer 1

You don’t need custom extension. You can use accept() method: http://docs.jquery.com/Plugins/Validation/Methods/accept#extension

// input field
<input type="text" id="eduEmail2" name="eduEmail2" value="[e-mail]"/>

// validation rule
eduEmail2: {
    required: true,
    email: true,
    accept: 'edu'
}

Full example: http://jsfiddle.net/M5TmU/2/ (based on Brombomb’s jsfiddle)

UPDATE

After xecute’s comment – you may use custom regex pattern. In additional-methods.js you have “pattern” method (last one in a file):

eduEmail3: {
    required: true,
    email: true,
    pattern: /(\.edu\.\w\w)$/
}

Full example: http://jsfiddle.net/M5TmU/3/

Of course it’s not perfect, but still – you don’t need write custom method 🙂

ADDITIONAL EDIT: country domain names have two letters, so \w\w\w? is too much – \w\w should do. I left \w\w\w? in fiddle