var BeginningWhiteSpaceRegExp = /^\s+/;
var EndingWhiteSpaceRegExp = /\s+$/;

function CheckField(Required,WhichField,FieldType,DisplayName,ReqLength,Numeric) {
	var RegExp;
	var TestVal;
	var MatchChar;
	var ErrMsg = 'None';
		
	//Replace any whitespace at beginning and end of string with nothing	
	if (FieldType == 'Text' || FieldType == 'Alpha'  || FieldType == 'Date' || FieldType == 'Money' ||
		FieldType == 'MoneyWhole' || FieldType == 'Phone' || FieldType == 'Email' || FieldType == 'Password') {
		TestVal = WhichField.value.replace(BeginningWhiteSpaceRegExp,'');
		TestVal = TestVal.replace(EndingWhiteSpaceRegExp,'');
	} else { 
		if (WhichField.selectedIndex == -1 || WhichField.options[WhichField.selectedIndex].value == 0) {
			TestVal = '';
		} else {	
			TestVal = WhichField.options[WhichField.selectedIndex].text;
		}
	}
	if (TestVal == '' && Required == true) {
		ErrMsg = DisplayName + ' must be entered.';
	} 
	
	
	//If required check has been passed, continue with field type edits 
	
	if (ErrMsg == 'None' && TestVal != '') {	
		
		//Check required length 	
		if (ReqLength > 0) {
			if (TestVal.length != ReqLength) {
				ErrMsg = DisplayName + ' must be ' + ReqLength + ' characters.';
			}
		}  
	
		//For money, remove all commas and one decimal, then set to Numeric to force numeric check
		if (FieldType == 'Money') {
			RegExp = /,/g;
			TestVal = TestVal.replace(RegExp,'');
			RegExp = /\./;
			TestVal = TestVal.replace(RegExp,'');
			Numeric = true;
		}
		
		//For money whole dollars, remove all commas then set to Numeric to force numeric check
		if (FieldType == 'MoneyWhole') {
			RegExp = /,/g;
			TestVal = TestVal.replace(RegExp,'');
			Numeric = true;
		}


		//Numeric check - match on any non-numeric character. If found, return Error.
		if (Numeric == true) {
			RegExp = /\D/;
			MatchChar = TestVal.match(RegExp);
			if (MatchChar != null) {
				ErrMsg = DisplayName + ' must be numeric.';
			}
		}
	
		//Alpha check - match on any non A-Z character. If found, return Error.
		if (FieldType == 'Alpha') {
			RegExp = /[^A-Z]/;
			TestVal = TestVal.toUpperCase();
			MatchChar = TestVal.match(RegExp);
			if (MatchChar != null) {
				ErrMsg = DisplayName + ' must be alphabetic.';
			}
		}
	
		//Check for valid date
		if (FieldType == 'Date') {
			if (CheckDate(TestVal) == 'Error') {
				ErrMsg = DisplayName + ' must be a valid date in mm/dd/yy format.';
			}
		}
		
		//Check for valid Phone
		if (FieldType == 'Phone') {
			var c;
			var numLth=0;
			for(i=0;i<TestVal.length;i++) {
			    c=TestVal.charAt(i);
			    //Allow left bracket in 1st position only, and only if right bracked entered too, ie. (617)
			    if (c == '(') { 
					if (i==0 && TestVal.charAt(4) == ')') {
						continue;
					} else {
						ErrMsg = DisplayName + ' contains invalid brackets.';
						break;
					}
				} 
				
				//Allow right bracket in 5th position only ie. (617)
			    if (c == ')') {	
					if (i==4) {
						continue;
					} else {
						ErrMsg = DisplayName + ' contains invalid brackets.';
						break;
					}
				}
			    
			    if (c == ' ') {
					//Allow space only after area code right bracket
					if (i==5 && TestVal.charAt(4) == ')') {
						 continue; 
					} else {   
					   ErrMsg = 'Embedded spaces are not allowed in ' + DisplayName + '.\nUse hyphen, period, or comma to seperate numbers.';
					   break;
					}
			    }
			    
			    //Comma, hyphen or period allowed
			    if (c==',' || c=='-' || c==".") {
					continue;
				} else {
					if (isNaN(c)) {  
						ErrMsg = DisplayName + ' cannot have non-numeric digits.'; 
					    break;
					} else {
						numLth = numLth + 1;
					}
				}
			}
			
		}		
	
		//Check for valid email address
		if (FieldType == 'Email') {
			var no=0;
			var c;
    
			for(i=0;i<TestVal.length;i++) {
				c=TestVal.charAt(i);
			    if(i==0) { 
			        /*if(!isNaN(c)) {
						no=2;  
					}*/
				}
			    if(c==' ') no=2;
			    if(c =='@')  no++;
			}

			if(no!=1 || TestVal.indexOf('@')<2) {
				ErrMsg = TestVal + ' is not a valid E-mail Address.';
			}
				   
			if (TestVal.indexOf('.')<1) {
				ErrMsg = TestVal + ' is not a valid E-mail Address.';
			}
			
			if ((TestVal.length-TestVal.lastIndexOf('.'))<3) {
				ErrMsg = TestVal + ' is not a valid E-mail Address.';
			}	
		}
	}
	
	if (ErrMsg == 'None') {
		return('OK');
	} else {
		if (FieldType == 'List') {
			WhichField.selectedIndex = 0;
		}
		WhichField.focus();
		alert(ErrMsg);
		return('Error');
	} 
}

	
function trimSpaces(WhichField) {
	
	var TestVal;
	
	//Replace any whitespace at beginning and end of string with nothing	
	TestVal = WhichField.value.replace(BeginningWhiteSpaceRegExp,'');
	TestVal = TestVal.replace(EndingWhiteSpaceRegExp,'');
	
	return(TestVal);
}

function CheckDate(WhichDate) {
	
	var SplitStr;
	var SplitDate;
	var NumSplits;
	
	//Check for date separator either / or -
	SplitStr = WhichDate.indexOf("/");
	if (SplitStr == -1) {
		SplitStr = "-";
	} else {
		SplitStr = "/";
	}
	
	//Split by separator into mm dd yy
	SplitDate = WhichDate.split(SplitStr);
	NumSplits = SplitDate.length;
	if (NumSplits != 3) {
		return('Error');
	} else {
		mm = SplitDate[0];
		dd = SplitDate[1];
		yy = SplitDate[2];
	}
	
	if (yy.length != 2) {
		if(yy.length!=4){
			return('Error');
		}else{
			if (isNaN(yy) || yy<0  || yy>2100) return('Error');
		}
	}else{
		if (isNaN(yy) || yy<0  || yy>99) return('Error');
	}
			
	//basic error checking - check for number and proper range
	if (isNaN(mm) || mm<1  || mm>12) return('Error');
	if (isNaN(dd) || dd<1  || dd>31) return('Error');
	

	
	//advanced error checking

	// months with 30 days
	if (mm==4 || mm==6 || mm==9 || mm==11) {
		if (dd==31) return('Error');

	}

	// february, leap year
	if (mm==2) {
		if (dd>29) 	return('Error');

		if (dd==29) {
			if ((yy % 4 == 0 && yy % 100 != 0) || yy % 400 == 0) {
				return('OK');
			} else {
				return('Error');
			}
		}
	}
	return('OK');
}

function getMMDDCCYY(DateMMDDYY) {
	var Date1;
	var dd;
	var mm;
	var yr;
	Date1 = new Date(DateMMDDYY);
	dd = Date1.getDate();
	mm = Date1.getMonth();
	yr = Date1.getYear();
	if (yr > 0 && yr < 50) {
		yr = yr + 2000;
	}
	return (new Date(yr,mm,dd));
}

var Cards = new makeArray(8);
Cards[0] = new CardType("MC", "51,52,53,54,55", "16");		//Master Card
var MasterCard = Cards[0];
Cards[1] = new CardType("Visa", "4", "13,16");			//Visa Card
var VisaCard = Cards[1];
Cards[2] = new CardType("AM", "34,37", "15");	//American Express
var AmExCard = Cards[2];
Cards[3] = new CardType("DinersClubCard", "30,36,38", "14");
var DinersClubCard = Cards[3];
Cards[4] = new CardType("Discover", "6011", "16");		//Discover Card
var DiscoverCard = Cards[4];
Cards[5] = new CardType("enRouteCard", "2014,2149", "15");
var enRouteCard = Cards[5];
Cards[6] = new CardType("JCBCard", "3088,3096,3112,3158,3337,3528", "16");
var JCBCard = Cards[6];
var LuhnCheckSum = Cards[7] = new CardType();

/*************************************************************************\
CheckCardNumber(form)
function called when users click the "check" button.
\*************************************************************************/
function CheckCardNumber(form) {
	var tmpyear;
	if (form.txtField_3.value.length == 0) {
		alert("Please enter a Card Number.");
		form.txtField_3.focus();
		return;
	}
	/*
	if (form.txtField_5.value.length == 0 || form.txtField_5.value.length == 1) {
		alert("Please enter the Expiration Year in \"YYYY\" format.");
		form.txtField_5.focus();
		return;
	}
	*/
	//if (form.txtField_5.value > 04)
	//	tmpyear = "19" + form.txtField_5.value;
	//else if (form.txtField_5.value < 29)
	/*
	if (form.txtField_5.value < 29 && form.txtField_5.value > 03)
		tmpyear = "20" + form.txtField_5.value;
	else {
		alert("The Expiration Year is not valid.");
		return;
	}
	*/

	tmpmonth = form.txtField_4.options[form.txtField_4.selectedIndex].value;
	tmpyear = form.txtField_5.options[form.txtField_5.selectedIndex].value;
	// The following line doesn't work in IE3, you need to change it
	// to something like "(new CardType())...".
	// if (!CardType().isExpiryDate(tmpyear, tmpmonth)) {

	if (!(new CardType()).isExpiryDate(tmpyear, tmpmonth)) {
		alert("This card has already expired.");
		return;
	}
	card = form.txtField_2.options[form.txtField_2.selectedIndex].value;
	
	var retval = eval(card + ".checkCardNumber(\"" + form.txtField_3.value +
	"\", " + tmpyear + ", " + tmpmonth + ");");
	cardname = "";
	var retval = false;
	
	if (retval) {
		// comment this out if used on an order form
		alert("This card number appears to be valid.");
		return true;
	} else {
		// The cardnumber has the valid luhn checksum, but we want to know which
		// cardtype it belongs to.
		for (var n = 0; n < Cards.size; n++) {
			if (Cards[n].checkCardNumber(form.txtField_3.value, tmpyear, tmpmonth)) {
				cardname = Cards[n].getCardType();
				break;
			}
		}
		if (cardname.length > 0) {
			//alert("This looks like a " + cardname + " number, not a " + card + " number.");
			alert("This card number is not valid.");
			form.txtField_3.focus();
			form.txtField_3.select();
		}
		else {
			alert("This card number is not valid.");
			form.txtField_3.focus();
			form.txtField_3.select();
		}
	}
}
/*************************************************************************\
Object CardType([String cardtype, String rules, String len, int year,
                                        int month])
cardtype    : type of card, eg: MasterCard, Visa, etc.
rules       : rules of the cardnumber, eg: "4", "6011", "34,37".
len         : valid length of cardnumber, eg: "16,19", "13,16".
year        : year of expiry date.
month       : month of expiry date.
eg:
var VisaCard = new CardType("Visa", "4", "16");
var AmExCard = new CardType("AM", "34,37", "15");
\*************************************************************************/
function CardType() {
	var n;
	var argv = CardType.arguments;
	var argc = CardType.arguments.length;

	this.objname = "object CardType";

	var tmpcardtype = (argc > 0) ? argv[0] : "CardObject";
	var tmprules = (argc > 1) ? argv[1] : "0,1,2,3,4,5,6,7,8,9";
	var tmplen = (argc > 2) ? argv[2] : "13,14,15,16,19";

	this.setCardNumber = setCardNumber;  // set CardNumber method.
	this.setCardType = setCardType;  // setCardType method.
	this.setLen = setLen;  // setLen method.
	this.setRules = setRules;  // setRules method.
	this.setExpiryDate = setExpiryDate;  // setExpiryDate method.

	this.setCardType(tmpcardtype);
	this.setLen(tmplen);
	this.setRules(tmprules);
	if (argc > 4)
	this.setExpiryDate(argv[3], argv[4]);

	this.checkCardNumber = checkCardNumber;  // checkCardNumber method.
	this.getExpiryDate = getExpiryDate;  // getExpiryDate method.
	this.getCardType = getCardType;  // getCardType method.
	this.isCardNumber = isCardNumber;  // isCardNumber method.
	this.isExpiryDate = isExpiryDate;  // isExpiryDate method.
	this.luhnCheck = luhnCheck;// luhnCheck method.
	return this;
}

/*************************************************************************\
boolean checkCardNumber([String cardnumber, int year, int month])
return true if cardnumber pass the luhncheck and the expiry date is
valid, else return false.
\*************************************************************************/
function checkCardNumber() {
	var argv = checkCardNumber.arguments;
	var argc = checkCardNumber.arguments.length;
	var cardnumber = (argc > 0) ? argv[0] : this.cardnumber;
	var year = (argc > 1) ? argv[1] : this.year;
	var month = (argc > 2) ? argv[2] : this.month;

	this.setCardNumber(cardnumber);
	this.setExpiryDate(year, month);

	if (!this.isCardNumber())
		return false;
	if (!this.isExpiryDate())
		return false;

	return true;
}
/*************************************************************************\
String getCardType()
return the cardtype.
\*************************************************************************/
function getCardType() {
	return this.cardtype;
}
/*************************************************************************\
String getExpiryDate()
return the expiry date.
\*************************************************************************/
function getExpiryDate() {
	return this.month + "/" + this.year;
}
/*************************************************************************\
boolean isCardNumber([String cardnumber])
return true if cardnumber pass the luhncheck and the rules, else return
false.
\*************************************************************************/
function isCardNumber() {
	var argv = isCardNumber.arguments;
	var argc = isCardNumber.arguments.length;
	var cardnumber = (argc > 0) ? argv[0] : this.cardnumber;
	if (!this.luhnCheck())
		return false;

	for (var n = 0; n < this.len.size; n++)
		if (cardnumber.toString().length == this.len[n]) {
			for (var m = 0; m < this.rules.size; m++) {
				var headdigit = cardnumber.substring(0, this.rules[m].toString().length);
		
			if (headdigit == this.rules[m])
				return true;
			}

		return false;
		}
	return false;
}

/*************************************************************************\
boolean isExpiryDate([int year, int month])
return true if the date is a valid expiry date,
else return false.
\*************************************************************************/
function isExpiryDate() {
	var argv = isExpiryDate.arguments;
	var argc = isExpiryDate.arguments.length;

	year = argc > 0 ? argv[0] : this.year;
	month = argc > 1 ? argv[1] : this.month;

	if (!isNum(year+""))
		return false;
	if (!isNum(month+""))
		return false;

	today = new Date();
	expiry = new Date(year, month);
	if (today.getTime() > expiry.getTime())
		return false;
	else
		return true;
}

/*************************************************************************\
boolean isNum(String argvalue)
return true if argvalue contains only numeric characters,
else return false.
\*************************************************************************/
function isNum(argvalue) {
	argvalue = argvalue.toString();

if (argvalue.length == 0)
	return false;

for (var n = 0; n < argvalue.length; n++)
	if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
		return false;

return true;
}

/*************************************************************************\
boolean luhnCheck([String CardNumber])
return true if CardNumber pass the luhn check else return false.
Reference: http://www.ling.nwu.edu/~sburke/pub/luhn_lib.pl
\*************************************************************************/
function luhnCheck() {
	var argv = luhnCheck.arguments;
	var argc = luhnCheck.arguments.length;

	var CardNumber = argc > 0 ? argv[0] : this.cardnumber;

	if (! isNum(CardNumber)) {
		return false;
	}

	var no_digit = CardNumber.length;
	var oddoeven = no_digit & 1;
	var sum = 0;

	for (var count = 0; count < no_digit; count++) {
		var digit = parseInt(CardNumber.charAt(count));
		if (!((count & 1) ^ oddoeven)) {
			digit *= 2;
			if (digit > 9)
				digit -= 9;
		}
	
		sum += digit;
	}
	
	if (sum % 10 == 0)
		return true;
	else
		return false;
}

/*************************************************************************\
ArrayObject makeArray(int size)
return the array object in the size specified.
\*************************************************************************/
function makeArray(size) {
	this.size = size;
	return this;
}

/*************************************************************************\
CardType setCardNumber(cardnumber)
	return the CardType object.
\*************************************************************************/
function setCardNumber(cardnumber) {
	this.cardnumber = cardnumber;
	return this;
}

/*************************************************************************\
CardType setCardType(cardtype)
	return the CardType object.
\*************************************************************************/
function setCardType(cardtype) {
	this.cardtype = cardtype;
	return this;
}

/*************************************************************************\
CardType setExpiryDate(year, month)
return the CardType object.
\*************************************************************************/
function setExpiryDate(year, month) {
	this.year = year;
	this.month = month;
	return this;
}

/*************************************************************************\
CardType setLen(len)
	return the CardType object.
\*************************************************************************/
function setLen(len) {
	// Create the len array.
	if (len.length == 0 || len == null)
	len = "13,14,15,16,19";

	var tmplen = len;
	n = 1;
	while (tmplen.indexOf(",") != -1) {
		tmplen = tmplen.substring(tmplen.indexOf(",") + 1, tmplen.length);
		n++;
	}
	this.len = new makeArray(n);
	n = 0;
	while (len.indexOf(",") != -1) {
		var tmpstr = len.substring(0, len.indexOf(","));
		this.len[n] = tmpstr;
		len = len.substring(len.indexOf(",") + 1, len.length);
		n++;
	}
	this.len[n] = len;
	return this;
}

/*************************************************************************\
CardType setRules()
return the CardType object.
\*************************************************************************/
function setRules(rules) {
	// Create the rules array.
	if (rules.length == 0 || rules == null)
		rules = "0,1,2,3,4,5,6,7,8,9";

	var tmprules = rules;
	n = 1;
	while (tmprules.indexOf(",") != -1) {
		tmprules = tmprules.substring(tmprules.indexOf(",") + 1, tmprules.length);
		n++;
	}
	this.rules = new makeArray(n);
	n = 0;
	while (rules.indexOf(",") != -1) {
		var tmpstr = rules.substring(0, rules.indexOf(","));
		this.rules[n] = tmpstr;
		rules = rules.substring(rules.indexOf(",") + 1, rules.length);
		n++;
	}
	this.rules[n] = rules;
	return this;
}

function emptyField(theField)
{
	if(theField.value == "NAME" || theField.value == "EMAIL" || theField.value == "COMMENTS")
		theField.value = "";
}

function ValidateEntries(frm) {

	if (CheckField(true, frm.txtName, 'Text', 'Name', 0, false) == 'Error'||
		CheckField(true, frm.txtEmail, 'Email', 'Email', 0, false) == 'Error'||
		CheckField(true, frm.txtComments, 'Text', 'Comments', 0, false) == 'Error'){
		return false;
	}
	
	if(frm.txtName.value == "NAME")
	{
		alert("Name must be entered.");
		frm.txtName.focus();
		return false;
	}
	if(frm.txtComments.value == "COMMENTS")
	{
		alert("Comments must be entered.");
		frm.txtComments.focus();
		return false;
	}

	return true;
}

function goToPage(theForm)
{
	if(theForm.cmbList.value != 0)
		window.open(theForm.cmbList.value, "_self");

	return false;
}

var winRequestQuote
function PopWin(opt)
{
	if (opt == "RequestQuote")
	{
		if (winRequestQuote != null)
			winRequestQuote.close()
		winRequestQuote = window.open ("RequestQuote.htm", "winRequestQuote", "width=500,height=500,top=100,left=100,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes");
	}
}



function isURL (ctl)
{
	//var exp = "/^(((ht|f)tp(s?))\:\/\/)?(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$/";
	//var exp = "((ht|f)tp(s?))(:((\/\/)(?!\/)))(((w){3}\.)?)([a-zA-Z0-9\-_]+(\.(com|edu|gov|int|mil|net|org|biz|info|name|pro|museum|co\.uk)))(\/(?!\/))(([a-zA-Z0-9\-_\/]*)?)([a-zA-Z0-9])+\.((jpg|jpeg|gif|png)(?!(\w|\W)))";
	var exp = "^(ht|f)tp(s?)\:\/\/[a-zA-Z0-9\-\._]+(\.[a-zA-Z0-9\-\._]+){2,}(\/?)([a-zA-Z0-9\-\.\?\,\'\/\\\+&%\$#_]*)?$";
    var regex = new RegExp(exp);
    var result;

    var s = ctl.value;
	if(s.indexOf("http://") == -1)
	{
		if(s.indexOf(".") > 1)
		{
			s = "http://" + s
		}
	}


    if (s.length > 0)
    {
          result = regex.test(s);
          if (result == false)
          {
               alert("Please enter a valid url format.\ni.e. www.address.com or http://www.address.com ");
               ctl.focus();
               ctl.select();
               return false;
          }
     }
     s="";
     return true;
}

//alert("here");
//var rx = new RegExp("^(http|https|ftp)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*[^\.\,\)\(\s]$");
//alert(rx.exec("http://www.yahoo.com"));