jQuery.validator.addMethod("maxWords", function(value, element, params) { 
    return this.optional(element) || value.match(/\b\w+\b/g).length < params; 
}, jQuery.validator.format("Please enter {0} words or less.")); 
 
jQuery.validator.addMethod("minWords", function(value, element, params) { 
    return this.optional(element) || value.match(/\b\w+\b/g).length >= params; 
}, jQuery.validator.format("Please enter at least {0} words.")); 
 
jQuery.validator.addMethod("rangeWords", function(value, element, params) { 
    return this.optional(element) || value.match(/\b\w+\b/g).length >= params[0] && value.match(/bw+b/g).length < params[1]; 
}, jQuery.validator.format("Please enter between {0} and {1} words."));


jQuery.validator.addMethod("letterswithbasicpunc", function(value, element) {
  return this.optional(element) || /^[a-z-.,()'\"\s]+$/i.test(value);
}, "Letters or punctuation only please");  

jQuery.validator.addMethod("alphanumeric", function(value, element) {
  return this.optional(element) || /^\w+$/i.test(value);
}, "Letters, numbers, spaces or underscores only please");  

jQuery.validator.addMethod("lettersonly", function(value, element) {
  return this.optional(element) || /^[a-z]+$/i.test(value);
}, "Letters only please"); 

jQuery.validator.addMethod("nowhitespace", function(value, element) {
  return this.optional(element) || /^\S+$/i.test(value);
}, "No white space please"); 

jQuery.validator.addMethod("ziprange", function(value, element) {
  return this.optional(element) || /^90[2-5]\d\{2}-\d{4}$/.test(value);
}, "Your ZIP-code must be in the range 902xx-xxxx to 905-xx-xxxx");

/**
* Return true, if the value is a valid vehicle identification number (VIN).
*
* Works with all kind of text inputs.
*
* @example <input type="text" size="20" name="VehicleID" class="{required:true,vinUS:true}" />
* @desc Declares a required input element whose value must be a valid vehicle identification number.
*
* @name jQuery.validator.methods.vinUS
* @type Boolean
* @cat Plugins/Validate/Methods
*/ 
jQuery.validator.addMethod(
  "vinUS",
  function(v){
    if (v.length != 17)
      return false;
    var i, n, d, f, cd, cdv;
    var LL    = ["A","B","C","D","E","F","G","H","J","K","L","M","N","P","R","S","T","U","V","W","X","Y","Z"];
    var VL    = [1,2,3,4,5,6,7,8,1,2,3,4,5,7,9,2,3,4,5,6,7,8,9];
    var FL    = [8,7,6,5,4,3,2,10,0,9,8,7,6,5,4,3,2];
    var rs    = 0;
    for(i = 0; i < 17; i++){
        f = FL[i];
        d = v.slice(i,i+1);
        if(i == 8){
            cdv = d;
        }
        if(!isNaN(d)){
            d *= f;
        }
        else{
            for(n = 0; n < LL.length; n++){
                if(d.toUpperCase() === LL[n]){
                    d = VL[n];
                    d *= f;
                    if(isNaN(cdv) && n == 8){
                        cdv = LL[n];
                    }
                    break;
                }
            }
        }
        rs += d;
    }
    cd = rs % 11;
    if(cd == 10){cd = "X";}
    if(cd == cdv){return true;}
    return false; 
  },
  "The specified vehicle identification number (VIN) is invalid."
);

/**
  * Return true, if the value is a valid date, also making this formal check dd/mm/yyyy.
  *
  * @example jQuery.validator.methods.date("01/01/1900")
  * @result true
  *
  * @example jQuery.validator.methods.date("01/13/1990")
  * @result false
  *
  * @example jQuery.validator.methods.date("01.01.1900")
  * @result false
  *
  * @example <input name="pippo" class="{dateITA:true}" />
  * @desc Declares an optional input element whose value must be a valid date.
  *
  * @name jQuery.validator.methods.dateITA
  * @type Boolean
  * @cat Plugins/Validate/Methods
  */
jQuery.validator.addMethod(
  "dateITA",
  function(value, element) {
    var check = false;
    var re = /^\d{1,2}\/\d{1,2}\/\d{4}$/
    if( re.test(value)){
      var adata = value.split('/');
      var gg = parseInt(adata[0],10);
      var mm = parseInt(adata[1],10);
      var aaaa = parseInt(adata[2],10);
      var xdata = new Date(aaaa,mm-1,gg);
      if ( ( xdata.getFullYear() == aaaa ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == gg ) )
        check = true;
      else
        check = false;
    } else
      check = false;
    return this.optional(element) || check;
  }, 
  "Please enter a correct date"
);

jQuery.validator.addMethod("dateNL", function(value, element) {
    return this.optional(element) || /^\d\d?[\.\/-]\d\d?[\.\/-]\d\d\d?\d?$/.test(value);
  }, "Vul hier een geldige datum in."
);

jQuery.validator.addMethod("time", function(value, element) {
    return this.optional(element) || /^([01][0-9])|(2[0123]):([0-5])([0-9])$/.test(value);
  }, "Please enter a valid time, between 00:00 and 23:59"
);

/**
 * matches US phone number format 
 * 
 * where the area code may not start with 1 and the prefix may not start with 1 
 * allows '-' or ' ' as a separator and allows parens around area code 
 * some people may want to put a '1' in front of their number 
 * 
 * 1(212)-999-2345
 * or
 * 212 999 2344
 * or
 * 212-999-0983
 * 
 * but not
 * 111-123-5434
 * and not
 * 212 123 4567
 */
jQuery.validator.addMethod("phone", function(phone_number, element) {
    phone_number = phone_number.replace(/\s+/g, ""); 
  return this.optional(element) || phone_number.length > 9 &&
    phone_number.match(/^(1-?)?(\([2-9]\d{2}\)|[2-9]\d{2})-?[2-9]\d{2}-?\d{4}$/);
}, "Please specify a valid phone number");

// TODO check if value starts with <, otherwise don't try stripping anything
jQuery.validator.addMethod("strippedminlength", function(value, element, param) {
  return jQuery(value).text().length >= param;
}, jQuery.validator.format("Please enter at least {0} characters"));

// same as email, but TLD is optional
jQuery.validator.addMethod("email2", function(value, element, param) {
  return this.optional(element) || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)*(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i.test(value); 
}, jQuery.validator.messages.email);

// same as url, but TLD is optional
jQuery.validator.addMethod("url2", function(value, element, param) {
  return this.optional(element) || /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)*(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value); 
}, jQuery.validator.messages.url);

// NOTICE: Modified version of Castle.Components.Validator.CreditCardValidator
// Redistributed under the the Apache License 2.0 at http://www.apache.org/licenses/LICENSE-2.0
// Valid Types: mastercard, visa, amex, dinersclub, enroute, discover, jcb, unknown, all (overrides all other settings)
jQuery.validator.addMethod("creditcardtypes", function(value, element, param) {

  if (/[^0-9-]+/.test(value)) 
    return false;
  
  value = value.replace(/\D/g, "");
  
  var validTypes = 0x0000;
  
  if (param.mastercard) 
    validTypes |= 0x0001;
  if (param.visa) 
    validTypes |= 0x0002;
  if (param.amex) 
    validTypes |= 0x0004;
  if (param.dinersclub) 
    validTypes |= 0x0008;
  if (param.enroute) 
    validTypes |= 0x0010;
  if (param.discover) 
    validTypes |= 0x0020;
  if (param.jcb) 
    validTypes |= 0x0040;
  if (param.unknown) 
    validTypes |= 0x0080;
  if (param.all) 
    validTypes = 0x0001 | 0x0002 | 0x0004 | 0x0008 | 0x0010 | 0x0020 | 0x0040 | 0x0080;
  
  if (validTypes & 0x0001 && /^(51|52|53|54|55)/.test(value)) { //mastercard
    return value.length == 16;
  }
  if (validTypes & 0x0002 && /^(4)/.test(value)) { //visa
    return value.length == 16;
  }
  if (validTypes & 0x0004 && /^(34|37)/.test(value)) { //amex
    return value.length == 15;
  }
  if (validTypes & 0x0008 && /^(300|301|302|303|304|305|36|38)/.test(value)) { //dinersclub
    return value.length == 14;
  }
  if (validTypes & 0x0010 && /^(2014|2149)/.test(value)) { //enroute
    return value.length == 15;
  }
  if (validTypes & 0x0020 && /^(6011)/.test(value)) { //discover
    return value.length == 16;
  }
  if (validTypes & 0x0040 && /^(3)/.test(value)) { //jcb
    return value.length == 16;
  }
  if (validTypes & 0x0040 && /^(2131|1800)/.test(value)) { //jcb
    return value.length == 15;
  }
  if (validTypes & 0x0080) { //unknown
    return true;
  }
  return false;
}, "Please enter a valid credit card number.");

/**
 * matches dutch bankaccounts.
 * 
 * It uses the '11 proef' method for bankaccounts which do not start with a 'p' or 'P'. Accounts with
 * starts with a 'p' or 'P' are 'gironummers' and do not have to comply to the '11 proef'.
 * 
 */
jQuery.validator.addMethod("bankaccountNL", function(value, element, param) {
  if ( !this.depend(param, element) )
    return "dependency-mismatch";
  
  // An account contains only numbers
  if (!/^\d/.test(value)) {
    return false;
  }
  
  // When the account number has less then 8 characters then do not
  // an '11 proef'. 
  if (value.length < 8) {       
    return true; 
  }
  
  // Do the '11 proef' to check if it could be a
  // valid account number.
  var accountNumber = value.replace(/\D/, "");
  var nrOfDigits = accountNumber.length;

  var sum = 0;
  for (i=0; i<nrOfDigits; i++) {
    number = accountNumber.charAt(i);
    sum += number * (nrOfDigits-i);
  }

  if (sum % 11 == 0) {
    return true;
  }
  return false;
    
}, "Rekeningnummer is niet correct.");


/**
 * method to check against a custom regular expression.
 * 
 */
jQuery.validator.addMethod("regexp", function(value, element, param) {
  var re = new RegExp(param);
  return this.optional(element) || re.test(value);
}, "Invoer voldoet niet aan gewenste formaat.");