title: JQuery: Form Validation plugin - validate specific string?
body: <p>I have a form that uses this plugin:</p>
  
  <p><a href="http://bassistance.de/jquery-plugins/jquery-plugin-validation/" rel="nofollow">http://bassistance.de/jquery-plugins/jquery-plugin-validation/</a></p>
  
  <p>Works great - but I cant figure how to validate by a specific string in-putted into a text field. For example, I want to create a rule that only validates a field if the users input is "foo".</p>
  
  <p>There is documentation here <a href="http://docs.jquery.com/Plugins/Validation#API_Documentation" rel="nofollow">http://docs.jquery.com/Plugins/Validation#API_Documentation</a></p>
  
  <p>But none of them seem to be the one I want. Does anyone know a way to get round this?</p>
  
  <p>Thanks!</p>