//**********************************************************************************************************************
// FORM VALIDATION
//**********************************************************************************************************************
 var timeMatch = /^\d{1,2}:\d{2}([ap]m)?$/; 
 
  

function cocreationForm(form)
{
    if(form.firstname.value.length < 1)
    { 
      alert("Please type in your first name");
      return false;
    } 
    else if(form.lastname.value.length < 1)
    {
      alert("Please type in your last name");
      return false;
    }
    else if(form.email.value.search("@") == -1 || form.email.value.search("[.*]") == -1)
    { 
       alert("Please type in a vaild E-mail Address");
       return false;
    }
    else if(form.address.value.length < 1)
    { 
      alert("Please type in your address");
      return false;
    }
    else if(form.city.value.length < 1)
    { 
      alert("Please type in the city");
      return false;
    }
    else if(form.state.value.length < 1)
    { 
      alert("Please type in the state");
      return false;
    }
    else if(form.zip.value.length < 1)
    { 
      alert("Please type in the zip");
      return false;
    }
    else if(form.phone.value.length < 1)
    { 
      alert("Please type in the phone");
      return false;
    }
    else if ((form.phone.value==null)||(form.phone.value==""))
    {
	  alert("Please enter your phone number");
	  return false;
	}
	else if (checkInternationalPhone(form.phone.value)==false)
	{
	  alert("Please enter a valid phone number");
	  form.phone.value="";
	  return false;
	}
    else if (isDate(form.diningDate.value) == false){
		return false;
	}
    else if(form.diningTime.value != '' && !form.diningTime.value.match(timeMatch)) 
 	{ 
 	  alert("Invalid time format: " + form.diningTime.value); 
 	  return false; 
    }
    else if(IsNumeric(form.partySize.value) == false)
    { 
      alert("Please type in the dining party size");
      return false;
    }
    else if(form.recipe.value.length < 1)
    { 
      alert("Please type in the suggested recipe");
      return false;
    }
    else{
       form.submit();
       return true;
    }
}


function feedbackForm(form)
{
    if(form.firstname.value.length < 1)
    { 
      alert("Please type in your first name");
      return false;
    } 
    else if(form.lastname.value.length < 1)
    {
      alert("Please type in your last name");
      return false;
    }
    else if(form.email.value.search("@") == -1 || form.email.value.search("[.*]") == -1)
    { 
       alert("Please type in a vaild E-mail Address");
       return false;
    }
    else if (isDate(form.visitDate.value) == false){
		dt.focus()
		return false
	}
    else if(form.comment.value.length < 1)
    { 
      alert("Please type in your comment");
      return false;
    }
    else{
       form.submit();
       return true;
    }
}


function reservationForm(form)
{
    if(form.reservationDate.value.length < 1)
    { 
      alert("Please select a date");
      return false;
    } 
    else{
       form.submit();
       return true;
    }
}



function reserveform(form)
{
    if(form.firstname.value.length < 1)
    { 
      alert("Please type in your first name");
      return false;
    } 
    else if(form.lastname.value.length < 1)
    {
      alert("Please type in your last name");
      return false;
    }
    else if(form.email.value.search("@") == -1 || form.email.value.search("[.*]") == -1)
    { 
       alert("Please type in a vaild E-mail Address");
       return false;
    }
    else{
       form.submit();
       return true;
    }
}





//**********************************************************************************************************************
// DATE VALIDATION
//**********************************************************************************************************************


var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}




//**********************************************************************************************************************
// PHONE NUMBER VALIDATION
//**********************************************************************************************************************



// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}
function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
var bracket=3
strPhone=trim(strPhone)
if(strPhone.indexOf("+")>1) return false
if(strPhone.indexOf("-")!=-1)bracket=bracket+1
if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
var brchr=strPhone.indexOf("(")
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

//**********************************************************************************************************************
// TRIM SPACES
//**********************************************************************************************************************


function trimAllSpace(str) 
{ 
    var str1 = ''; 
    var i = 0; 
    while(i != str.length) 
    { 
        if(str.charAt(i) != ' ') 
            str1 = str1 + str.charAt(i); i ++; 
    } 
    return str1; 
}

//**********************************************************************************************************************
// NUMBER VALIDATION
//**********************************************************************************************************************


function IsNumeric(strString) 
{ 
    var strValidChars = "0123456789"; 
    var strChar; 
    var blnResult = true; 
    //var strSequence = document.frmQuestionDetail.txtSequence.value; 

    //test strString consists of valid characters listed above 

    if (strString.length == 0) 
        return false; 
    for (i = 0; i < strString.length && blnResult == true; i++) 
    { 
        strChar = strString.charAt(i); 
        if (strValidChars.indexOf(strChar) == -1) 
        { 
            blnResult = false; 
        } 
     } 
	return blnResult; 
}