jQuery.validator.addMethod("maxWords", function(value, element, params) { 
    return this.optional(element) || value.match(/\b\w+\b/g).length < params; 
}, "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; 
}, "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]; 
}, "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, dashes, 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");

jQuery.validator.addMethod("beginsWith", function(value, element, params) { 
    return this.optional(element) || value.substr(0, params.length) == params; 
}, "Please begin with {0}."); 

/**
* 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"
);

/**
  * Return true, if the value is a valid date, also making this formal check mm/dd/yyyy or mm/yyyy.
  *
  * @name jQuery.validator.methods.dateUS
  * @type Boolean
  * @cat Plugins/Validate/Methods
  */
jQuery.validator.addMethod(
	"dateUS",
	function(value, element) {
		var check = false;
		var re = /^\d{1,2}\/\d{1,2}\/\d{4}$/;	// mm/dd/yy
		if (re.test(value)){
			var adata = value.split('/');
			var mm = parseInt(adata[0],10);
			var dd = parseInt(adata[1],10);
			var aaaa = parseInt(adata[2],10);
			var xdata = new Date(aaaa,mm-1,dd);
			if ( ( xdata.getFullYear() == aaaa ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == dd ) ) {
				check = true;
			} else {
				check = false;
			}
		}

		if (!check) {	// mm/yyyy
			var re = /^\d{1,2}\/\d{4}$/;
			if (re.test(value)) {
				var adata = value.split('/');
				var mm = parseInt(adata[0],10);
				var dd = 1;
				var aaaa = parseInt(adata[1],10);
				var xdata = new Date(aaaa,mm-1,dd);
				if ( ( xdata.getFullYear() == aaaa ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == dd ) ) {
/**
 * check input date, if input date is in the feature, return false
 * by Jeffery 
 */
					var theDate = new Date(1970, 1, 1);
					if(xdata < theDate) {
						check = false;
					}else {
						var adata = sDate.split('/');
						var mm = parseInt(adata[0],10);
						var dd = 2;
						var aaaa = parseInt(adata[2],10);
						var serverDate = new Date(aaaa,mm - 1,dd);
						if(serverDate < xdata) {
							check = false;
						}else {
							check = true;
						}
					}
				} else {
					check = false;
				}
			}
		}
		return this.optional(element) || check;
	}, 
	"Please enter a correct date"
);


/**
  * Return true, if the value is a valid date, also making this formal check yyyy-mm-dd.
  *
  * @name jQuery.validator.methods.dateDOB
  * @type Boolean
  * @cat Plugins/Validate/Methods
  * by william.pang
  */
jQuery.validator.addMethod(
	"dateDOB",
	function(value, element) {
		var check = false;
		var re = /^\d{1,2}-\d{1,2}-\d{4}$/;	// yy-mm-dd
		if (re.test(value)){
			var adata = value.split('-');
			var mm = parseInt(adata[0],10);
			var dd = parseInt(adata[1],10);
			var aaaa = parseInt(adata[2],10);
			var xdata = new Date(aaaa,mm-1,dd);
			if(aaaa < 1901){
				check = false;
			}
			else if ( ( xdata.getFullYear() == aaaa ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == dd ) ) {
				check = true;
			} else if( aaaa >1901 && ( mm=='0' ) && ( dd=='0' )){ 
				check = true;
			}else {
				check = false;
			}
		}

		return this.optional(element) || check;
	}, 
	"Please enter a correct date"
);

/**
 * 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.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);

jQuery.validator.addMethod("theMaxLength", function(value, element) {
	return this.optional(element) || value.length<32;
}, "Please enter no more than 32 characters.");

// same as email, but TLD is optional , only input A-Z,a-z,0-9,"_","-","."
jQuery.validator.addMethod("validateEmail", function(value, element, param) {
	return this.optional(element) || /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/i.test(value); 
}, jQuery.validator.messages.email);

//for started date and ended date check
//by Jeffery
jQuery.validator.addMethod(
	"dateNatural",
	function(value, element, param) {
		var check = false;
		var params = param.split('/');
		var action = params[0];
		if(isNaN(params[1])) {
			check = true;
		}else {
			var mm = parseInt(params[1],10);
			var dd = 1;
			var yyyy = parseInt(params[2],10);
			if(action == '0') {
				var endDate = new Date(yyyy, mm-1, dd);
				if(endDate == 'Invalid Date') {
					check = false;
				}else {
					var startDateParams = value.split('/');
					var startMM = parseInt(startDateParams[0],10);
					var startDD = 1;
					var startYYYY = parseInt(startDateParams[1],10);
					var startDate = new Date(startYYYY, startMM - 1, startDD);
					if(startDate == 'Invalid Date') {
						check = false;
					}else {
						if(endDate < startDate) {
							check = false;
						}else {
							check = true;
						}
					}
				}
			}
		
			if(action == '1') {
				var startDate = new Date(yyyy, mm - 1, dd);
				if(startDate == 'Invalid Date') {
					check = false;
				}else {
					var endDateParams = value.split('/');
					var endMM = parseInt(endDateParams[0],10);
					var endDD = 1;
					var endYYYY = parseInt(endDateParams[1],10);
					var endDate = new Date(endYYYY, endMM - 1, endDD);
					if(endDate == 'Invalid Date') {
						check = false;
					}else {
						if(endDate < startDate) {
							check = false;
						}else {
							check = true;
						}
					}
				}
			}

			
		}

		return this.optional(element) || check;
	}, 
	"Started date must earlier than ended date."
);