(function() {
	
	function stripHtml(value) {
		// remove html tags and space chars
		return value.replace(/<.[^<>]*?>/g, ' ').replace(/&nbsp;|&#160;/gi, ' ')
		// remove numbers and punctuation
		.replace(/[0-9.(),;:!?%#$'"_+=\/-]*/g,'');
	}
	jQuery.validator.addMethod("maxWords", function(value, element, params) { 
	    return this.optional(element) || stripHtml(value).match(/\b\w+\b/g).length < params; 
	}, jQuery.validator.format("Vul maximaal {0} woorden in."));
	 
	jQuery.validator.addMethod("minWords", function(value, element, params) { 
	    return this.optional(element) || stripHtml(value).match(/\b\w+\b/g).length >= params; 
	}, jQuery.validator.format("Vul minstens {0} worden in."));
	 
	jQuery.validator.addMethod("rangeWords", function(value, element, params) { 
	    return this.optional(element) || stripHtml(value).match(/\b\w+\b/g).length >= params[0] && value.match(/bw+b/g).length < params[1]; 
	}, jQuery.validator.format("Vul tussen de {0} en de {1} worden in."));

})();

jQuery.validator.addMethod("letterswithbasicpunc", function(value, element) {
	return this.optional(element) || /^[a-z0-9-.,()'\"\s]+$/i.test(value);
}, "Alleen letters en leestekens");

jQuery.validator.addMethod("alphanumeric", function(value, element) {
	return this.optional(element) || /^\w+$/i.test(value);
}, "Letters, nummers, spaties en liggende streepjes zijn alleen toegestaan");

jQuery.validator.addMethod("lettersonly", function(value, element) {
	return this.optional(element) || /^[a-z]+$/i.test(value);
}, "Vul alleen maar letters in");

jQuery.validator.addMethod("nowhitespace", function(value, element) {
	return this.optional(element) || /^\S+$/i.test(value);
}, "Hierin mogen geen spaties staan");

jQuery.validator.addMethod("integer", function(value, element) {
	return this.optional(element) || /^-?\d+$/.test(value);
}, "Een positief of negetief getal zonder getallen achter de komma");

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);
	}, "Vul een correcte tijd in tussen 00:00 en 23:59"
);