jQuery(function($){
  
  $('#signin_username').parents('form').validate({
    rules: {"signin[username]":{"required":true},"signin[password]":{"required":true}},
    messages: {"signin[username]":{"required":"Please enter a value for this field."},"signin[password]":{"required":"Please enter a value for this field."}},
    wrapper: 'ul',
    errorElement: 'li',
    errorPlacement: function(error, element) 
    {
     error.addClass('error_list');
     if(element.parents('.radio_list').is('*') || element.parents('.checkbox_list').is('*'))
     {
       error.prependTo( element.parent().parent().parent() );
     }
     else
     {
       error.prependTo( element.parent() );
     }
   }
  
  });
  
  
});

/* for some reason the jQuery Validate plugin does not incluce a generic regex method */
jQuery.validator.addMethod(
  "regex",
  function(value, element, regexp) {
      if (regexp.constructor != RegExp)
          regexp = new RegExp(regexp);
      else if (regexp.global)
          regexp.lastIndex = 0;
      return this.optional(element) || regexp.test(value);
  },
  "Invalid."
);