title: Cannot get jQuery validation to work with MM/DD/YYYY
body: <p>I have a custom regex method:</p>
  
  <pre><code>$.validator.addMethod(
      "dateRegex",
         function(value, element, regexp) {
           var re = new RegExp(regexp);
           return this.optional(element) || re.test(value);
         },
         "Date must be in the format MM/DD/YYYY"
   );
  </code></pre>
  
  <p>I've got jQuery validation on a date field that looks like this:</p>
  
  <pre><code>rules:
        date:
          {
          required: true,
          dateRegex: '^(0[1-9]|1[012])[- //.](0[1-9]|[12][0-9]|3[01])[- //.](19|20)\d\d$',
          maxlength: 10
          }
        }
  messages: {
      lossDate: {
      required: "Unable to proceed, search field is empty"
      }   
  }
  </code></pre>
  
  <p>When I enter a valid date, for example 08/06/2013, "Date must be in the format MM/DD/YYYY" is displayed.  Does anyone see a mistake in my regex, or is the problem outside of that?</p>
  
  <p>The test data passes here:  <a href="http://regexpal.com/" rel="nofollow">http://regexpal.com/</a></p>
  
  <p>Also, I have the following working in my app:</p>
  
  <pre><code>$.validator.addMethod(
      "regex",
      function(value, element, regexp) {
         var re = new RegExp(regexp);
         return this.optional(element) || re.test(value);
      },
      "Invalid number of characters entered."
  );
  
  number: 
        {
      required: true,
      regex: '^(.{7}|.{9}|.{11}|.{12}|.{15})$' 
        },...
  </code></pre>