jQuery.validator.addMethod("onlyNumberLetterSpace", function(value, element) { //postcode
	return this.optional(element) || /^[0-9\sA-Za-z]+$/.test(value);
}, "Please enter only numbers, space, or letters.");

jQuery.validator.addMethod("onlyCharacters", function(value, element) {
	return this.optional(element) || /^[0-9\sA-Za-z\u00e1\u00e9\u00ed\u00f3\u00fa\u00c1\u00c9\u00cd\u00d3\u00da\u00f1\u00d1\u00e7.,\-\u0027]+$/.test(value);
}, "Please enter only numbers, letter, comma, dot, hyphens, apostrophe or spaces.");

jQuery.validator.addMethod("onlyCharactersandAmpersand", function(value, element) {
	return this.optional(element) || /^[0-9\sA-Za-z\u00e1\u00e9\u00ed\u00f3\u00fa\u00c1\u00c9\u00cd\u00d3\u00da\u00f1\u00d1\u00e7.,\-\&\u0027]+$/.test(value);
}, "Please enter only numbers, letter, comma, dot, hyphens, apostrophe, ampersand or spaces.");