/*******************************************************************************
FILE: ValidatePKDate.js
Tester: Waqar Attari
DATE: 10/09/2009
*******************************************************************************/

/************************************************
DESCRIPTION: Validates that a string contains a 
  valid dd-MMM-yyyy pattern. 
  
 PARAMETERS:
   strValue - String to be tested for validity
   
RETURNS:
   True if valid, otherwise false.

*************************************************/

function validatePKDate(StrDate) 
{
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 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 = StrDate;

if (strDate.length < 1) {
//alert("in utils");
return true;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
{
 if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) 
 {
  strDateArray = strDate.split(strSeparatorArray[intElementNr]);
	//var  err_str=strDate.toString();	
	//document.getElementById("err_shw").innerHTML=err_str;

  if (strDateArray.length != 3) 
    { 
     err = 1;
     return false;
    }
  else
   {
    strDay = strDateArray[0];
   // alert("strDay");
  // var  err_str="strDay"+strDay;	
   // alert(err_str);
	//document.getElementById("err_shw").innerHTML=err_str;

    strMonth = strDateArray[1];
 //  var  err_str="strMonth"+strMonth;	
 //  alert(err_str);
//	document.getElementById("err_shw").innerHTML=err_str;

    strYear = strDateArray[2];
//    var  err_str="strYear"+strYear;	
//    alert(err_str);
//	document.getElementById("err_shw").innerHTML=err_str;

   }
    booFound = true;
 
 }
}
if (booFound == false) 
{


  err = 1;
     return false;
  }
  
  
if(strYear.length == 0)
{


err = 1;
return false;
}
///////
if (strYear.length == 1) {
err = 1;
return false;}

if (strYear.length == 2) {
strYear = '20' + strYear;
}

if (strYear.length = 3) {
strYear = '0' + strYear;
}

// US style

intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
/// new addition
if (!isNaN(intMonth)) 
{
return false;
}
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;
   }
}

var reg=/\D/;
if (strYear.search(reg)>=0)
{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;
}
}
}
 
return true;
}