/************************************no left cllick********************************/
function checkDate(day, month, year)
{
	if ( (isNaN(day)) || (isNaN(month)) || (isNaN(year)) ) 
	{
		//alert("Please use digits only");
		return false;
	}
		
	if (month>12 || month<1) 
	{
		//alert("Invalid month");
		return false;
	}
	
	if ((month == 1 || 
		 month == 3 || 
		 month == 5 || 
		 month == 7 || 
		 month == 8 || 
		 month == 10 || 
		 month == 12) && (day > 31 || day < 1)) 
	{
		//alert("Invalid day in month");
		return false;
	}
	if ((month == 4 || 
		month == 6 || 
		month == 9 || 
		month == 11) && (day > 30 || day < 1)) 
	{
		//alert("Invalid day in month");	
		return false;
	}
	if (month == 2) 
	{
		if (day < 1) 
		{
			//alert("Invalid day in month");	
			return false;
		}
		if (LeapYear(year) == true) 
		{
			if (day > 29) 
			{
				//alert("Invalid day in month");				
				return false;
			}
		}
		else 
		{
			if (day > 28) 
			{
				return false;
			}
		}
	} // end of if month = 2
	return true;
}
	
//-------------------------------------
// Function:		LeapYear
// Purpose:			Check if year is leap
// Parameters:		input  - 	year	
// return values:	true/false
//-------------------------------------
function LeapYear(intYear) 
{
	if (intYear % 100 == 0) 
	{
		if (intYear % 400 == 0) 
		{ 
			return true; 
		}
	}
	else 
	{
		if ((intYear % 4) == 0) 
		{
			return true; 
		}
	}
	return false;
}
//check if given file has picture ext
function checkIfGif(str){
	var gifStr = new String()
	var extStr = new String()
			
	gifStr = str ;
	extStr = gifStr.substr(gifStr.lastIndexOf(".") + 1) ;
	extStr = extStr.toLowerCase() ;
	if(extStr != "gif" && extStr != "bmp" && extStr != "jpg"){
		alert("קובץ תמונה לא חוקי") ;
		return false ;
	}
			
	return true ;
}//of checkIfGif

function popWin(pageUrl, pageName, pageWidth, pageheight, noBars){
	if(noBars == 1){
		newWin = open(pageUrl, pageName,"width=" + pageWidth + ",height=" + pageheight + ",status=מם,scrollbars=מם,left=250,top=10,menubar=no,resizable=no,address=no")
	}
	else{
		newWin = open(pageUrl, pageName,"width=" + pageWidth + ",height=" + pageheight + ",status=yes,scrollbars=yes,left=250,top=10,menubar=yes,resizable=yes,address=1")
	}
}

		/*gets fieldName, formname, max chrecters num, caption field,
		fromValCheck tells whther it came from keypress event or from
		form validation check.
		returns true if less then maxChar else returns false
		*/
		
		function countChars(fieldName, formName, maxChars, fieldCaption, fromValCheck){
			var obj ;
			var str = new String()
			obj = eval("document." + formName + "." + fieldName)
			str = obj.value
			if((str.length + 1) >  maxChars){
				if(fromValCheck){
					maxChars = maxChars 
					alert("Please insert up to  " + maxChars + " characters in the " + fieldCaption + " field")
				}
				else{
					alert("Please insert up to  " + maxChars + " characters in the " + fieldCaption + " field")
				}
				return false ;
			}
			else{
				return true ;
			}
			return true
		}// of countChars
		
		whiteSpace = " \t\n" ;

	////
	// Returns true if there is a white space (actually a string)
	//  contained within string c.
	function whiteSpaceInString (s, w)
	{   
		noWhiteSpaceFlg = 0;
		for (i = 0; i < w.length; i++)
	    {   
			if (s.indexOf(w.charAt(i)) != -1)
				noWhiteSpaceFlg = 1;
	    }
	    if (noWhiteSpaceFlg == 1)
			return (true);
		else
			return (false);
	}
	/**
		gets a string and then checks whether it's a valid email or not.
		returns true if the email in string s is valid email.
	*/
	function isEmail (s)
	{ 
		if (s.length == 1 || s.length == 0) return false;
		
	    // is s whitespace?
	    if (whiteSpaceInString(s,whiteSpace )) return false;
	    
	    // there must be >= 1 character before @, so we
	    // start looking at character position 1 
	    // (i.e. second character)
	    var i = 1;
	    var sLength = s.length;
	
	    // look for @
	    while ((i < sLength) && (s.charAt(i) != "@"))
	    { 
			i++
	    }
	
	    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
	    else i += 2;
	
	    // look for .
	    while ((i < sLength) && (s.charAt(i) != "."))
	    { 
			i++
	    }
	
	    // there must be at least one character after the .(dot)
	    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
	    else return true;
	}
	

/***********************Credit Card Val************************/

var Cards = new makeArray(8);
Cards[0] = new CardType("MasterCard", "51,52,53,54,55", "16");
var MasterCard = Cards[0];
Cards[1] = new CardType("VisaCard", "4", "13,16");
var VisaCard = Cards[1];
Cards[2] = new CardType("AmExCard", "34,37", "15");
var AmExCard = Cards[2];
Cards[3] = new CardType("DinersClubCard", "30,36,38", "14");
var DinersClubCard = Cards[3];
Cards[4] = new CardType("DiscoverCard", "6011", "16");
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 (document.frm.CardNumber.value.length == 0) {
alert("Please enter a Card Number.");
document.frm.CardNumber.focus();
return;
}
if (document.frm.ExpYear.value.length == 0) {
alert("Please enter the Expiration Year.");
document.frm.ExpYear.focus();
return;
}
if (document.frm.ExpYear.value > 96)
tmpyear = "19" + document.frm.ExpYear.value;
else if (document.frm.ExpYear.value < 21)
tmpyear = "20" + document.frm.ExpYear.value;
else {
alert("The Expiration Year is not valid.");
return;
}
tmpmonth = document.frm.ExpMon.options[document.frm.ExpMon.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 = document.frm.CardType.options[document.frm.CardType.selectedIndex].value;
var retval = eval(card + ".checkCardNumber(\"" + document.frm.CardNumber.value +
"\", " + tmpyear + ", " + tmpmonth + ");");
cardname = "";
if (retval)



// comment this out if used on an order form
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(document.frm.CardNumber.value, tmpyear, tmpmonth)) {
cardname = Cards[n].getCardType();
break;
   }
}
if (cardname.length > 0) {
alert("This looks like a " + cardname + " number, not a " + card + " number.");
}
else {
alert("This card number is not valid.");
      }
   }
}
/*************************************************************************\
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("AmEx", "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;
year = document.frm.ExpYear.value
month = document.frm.ExpMon.value
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;
}


//for banner url
function findReplace(myText, findStr, replaceStr) {
		var stringParts = new Array();
		stringParts = myText.split(findStr);
		var newStr = new String();
		var partsMax = stringParts.length;
		for (i=0; i<partsMax; i++) {
			if (i<partsMax-1) {
				newStr += stringParts[i]+replaceStr;
			} else {
				newStr += stringParts[i];
			}
		}
		return newStr
	}