// JavaScript Document
function chkdate(objName) {
//var strDatestyle = "US"; //United States date style
var strDatestyle = "EU";  //European date style
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "Jan";
strMonthArray[1] = "Feb";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Apr";
strMonthArray[4] = "May";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Aug";
strMonthArray[8] = "Sep";
strMonthArray[9] = "Oct";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dec";
strDate = datefield.value;
if (strDate.length < 1) {
return false;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
strDateArray = strDate.split(strSeparatorArray[intElementNr]);
if (strDateArray.length != 3) {
err = 1;
return false;
}
else {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
}
booFound = true;
if (strDay.length == 1) {
strDay = '0' + strDay;
}
if (strMonth.length == 1) {
strMonth = '0' + strMonth;
}
if (strYear.length == 2) {
strYear = '20' + strYear;
}
if (strYear.length == 1) {
strYear = '200' + strYear;
}
   }
}
if (booFound == false) {
//if (strDate.length>5) {
//strDay = strDate.substr(0, 2);
//strMonth = strDate.substr(2, 2);
//strYear = strDate.substr(4);
//if (strYear.length == 2) {
//strYear = '20' + strYear;
//}
//else {
return false;
//}
//}
}


// US style
//if (strDatestyle == "US") {
//strTemp = strDay;
//strDay = strMonth;
//strMonth = strTemp;
//}
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth)) {
for (i = 0;i<12;i++) {
if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
intMonth = i+1;
strMonth = strMonthArray[i];
i = 12;
   }
}
if (isNaN(intMonth)) {
err = 3;
return false;
   }
}
intYear = parseInt(strYear, 10);
if (isNaN(intYear)) {
err = 4;
return false;
}
if (intMonth>12 || intMonth<1) {
err = 5;
return false;
}
if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
err = 6;
return false;
}
if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
err = 7;
return false;
}
if (intMonth == 2) {
if (intday < 1) {
err = 8;
return false;
}
if (LeapYear(intYear) == true) {
if (intday > 29) {
err = 9;
return false;
}
}
else {
if (intday > 28) {
err = 10;
return false;
}
}
}
// if (strDatestyle == "US") {
// datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
//}
//else {
datefield.value = intday + "/" + strMonth + "/" + strYear;
//}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;

     for (var i = 0; i < passedVal.length; i++) {
       if (passedVal.charAt(i) < "0" ){
         return true;
       } 
       if (passedVal.charAt(i) > "9" ) {
         return true;
       }
     }
return false;
}

function checkdate(objName) {
var datefield = objName;
if (chkdate(objName) == false) {
datefield.select();
alert("That date is invalid.  Please try again.");
datefield.focus();
return false;
}
else {
return true;
   }
}

function validEmail(email) {
      var invalidChars = " /:,;"
      var atPos = email.indexOf("@",1)

      if (email == "") {
         return false
      }
      for (i=0; i<invalidChars.lengths; i++) {
         badChar = invalidChars.charAt(i)
         if (email.indexOf(badChar,0) > -1 ) {
            return false
         }
      }
      if (atPos == -1) {
         return false
      }
      if (email.indexOf("@",atPos+1) > -1 ) {
         return false
      }
      periodPos = email.indexOf(".",atPos)
      if (periodPos == -1) {
         return false
      }
      if (periodPos+3 > email.length) {
         return false
      }
      return true
}

function isEmpty(passedVal) {
      if (passedVal == "") {
         return false
       }
return true
}
function valid_date(field)
{
	if(field=="")
	{
	alert("Date is a required field!")
	return false;
	}
	
		var valid = "0123456789/";
	var slashcount = 0;

	if (field.length!=10) 
	{
	alert("Invalid date! The correct date format is like '12/03/2008'.   Please try again.")
	return false;
	}
		for (var i=0; i < field.length; i++)
		 {
		temp = "" + field.substring(i, i+1);
		if (temp == "/") 
		slashcount++;
			if (valid.indexOf(temp) == "-1") 
			{
			alert("Invalid characters in your date.  Please try again.")
			return false;
			}
		if (slashcount > 2) 
		{
		alert("Invalid Date!  The slash character should be used with a properly formatted 8 digits like  '12/03/2008'.   Please try again.")
		return false;
  		 }
		if((field.charAt(2)!= '/')||(field.charAt(5) != '/'))
		{
		alert("Invalid date! The slash character should be used with a properly formatted 8 digits like  '12/03/2008'.   Please try again.")
		return false;
		}
	}
	return true;


}
function validForm(passForm) {
         
	 if (!isEmpty(document.forms[0].FullName.value)) {
         alert("You must enter your Name!");
        document.forms[0].FullName.focus();
         return false;
       }
 if (!isEmpty(document.forms[0].Tel.value)) {
         alert("You must enter your Telephone Number!");
        document.forms[0].Tel.focus();
         return false;
       }
    if (!validEmail(document.forms[0].Email.value)) {
         alert("You must enter a valid email address (email addresses must be like 'user@user.net') !");
        document.forms[0].Email.focus();
         return false;
       }
 if (!isEmpty(document.forms[0].Booking_Date.value)) {
         alert("You must either enter a date in the format 12/03/2008 or select from the calendar!");
        document.forms[0].Booking_Date.focus();
         return false;
       }
	   	if(!valid_date(document.forms[0].Booking_Date.value))
		return false
		
return true
}