SO jQuery Fiddle

Test Fiddle mainly for SO Questions jQuery 1.4.3, UI 1.8.5

by Fabi F

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<form>
    <input type="text" name="test" />
    <button type="submit">Test</button>
</form>

JavaScript

var array = ["homer", "marge", "bart"];


jQuery.validator.addMethod("notEquals", function(value, element, param) {
  return this.optional(element) || value != param;
}, "different value please");


$("form").validate({
    rules: { 
        test: { 
            required: true, 
            notEquals: array[1], 
            //notEquals: array
        } 
    },
    debug: true
});