/***************************************************************************************/
// General functions
/***************************************************************************************/

/////////////////////////////////////////////////////////////////////////////////////////
// Checks whether a date entered is a valid date or not.
/////////////////////////////////////////////////////////////////////////////////////////
function checkDate(ddVal, mmVal, yyVal) {
	if(ddVal <= 0 || ddVal > 31 || mmVal <= 0 || mmVal > 12 || yyVal <= 0 || yyVal.length != 4) {
		alert("Please enter a valid date");
		return false;
	}
	monthArray = new Array("January", "Febuary", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
	if(mmVal == 2) {
		if(yyVal % 4 == 0) {
			if(ddVal > 29) {
				alert("February " + yyVal + " has only 29 days");
				return false;
			}
		}
		else {
			if(ddVal > 28) {
				alert("February " + yyVal + " has only 28 days");
				return false;
			}
		}
	}
	else {
		if(mmVal == 4 || mmVal == 6 || mmVal == 9 || mmVal == 11) {
			if(ddVal > 30) {
				alert(monthArray[mmVal-1] + " has only 30 days");
				return false;
			}
		}
	}
	return true;
}





/////////////////////////////////////////////////////////////////////////////////////////
// Checks whether a string is a valid email address.
/////////////////////////////////////////////////////////////////////////////////////////
function checkEmail(emailString) {
	splitVal = emailString.split('@');
	
	if(splitVal.length <= 1) {
		alert("Please enter a valid email address");
		return false;
	}
	if(splitVal[0].length <= 0 || splitVal[1].length <= 0  ) {
		alert("Please enter a valid email address");
		return false;
	}
	if(splitVal[0].charAt(0) >= 0 || splitVal[0].charAt(0) <= 9){
		alert("Please enter a valid email address");
		return false;
	}
	
	splitDomain = splitVal[1].split('.');
	if(splitDomain.length <= 1) {
		alert("Please enter a valid email address");
		return false;
	}
	if(splitDomain[0].length <= 0 || splitDomain[1].length <= 1) {
		alert("Please enter a valid email address");
		return false;
	}
	return true;
}

/////////////////////////////////////////////////////////////////////////////////////////
// Removes the leading and trailing spaces in a strings and returns the trimmed string
/////////////////////////////////////////////////////////////////////////////////////////
function trimSpaces(stringValue) {
	// Checks the first occurance of spaces and removes them
	for(i = 0; i < stringValue.length; i++) {
		if(stringValue.charAt(i) != " ") {
			break;
		}
	}
	if(i > 0) {
		stringValue = stringValue.substring(i);
	}
	
	// Checks the last occurance of spaces and removes them
	strLength = stringValue.length - 1;
	for(i = strLength; i >= 0; i--) {
		if(stringValue.charAt(i) != " ") {
			break;
		}
	}
	if(i < strLength) {
		stringValue = stringValue.substring(0, i + 1);
	}
	
	// Returns the string after removing leading and trailing spaces.
	return stringValue;
}

/////////////////////////////////////////////////////////////////////////////////////////
// Checking Sepcial Characters
/////////////////////////////////////////////////////////////////////////////////////////
function specialchar(stringValue) {
	var iChars = "!@#$%^&*()+=-[]\\\';,/{}|\":<>?0123456789";

	for (var i = 0; i < stringValue.length; i++) {
		if (iChars.indexOf(stringValue.charAt(i)) != -1) {
			return false;
		}
	}
	
	return true;
}

/////////////////////////////////////////////////////////////////////////////////////////
// Check whether a string contain permitted characters only
/////////////////////////////////////////////////////////////////////////////////////////
function checkAllowedChars(strToCheck, allowedChars)
{
     var acLen     = allowedChars.length;
     var stcLen     = strToCheck.length;
     strToCheck     = strToCheck.toLowerCase();
     var i;
     var j;
     var rightCount = 0;
     for(i = 0; i < acLen; i++)
     {
          switch(allowedChars.charAt(i))
          {
          case 'A':
               for(j = 0; j< stcLen; j++)
               {
                    rightCount += strToCheck.charAt(j) >= 'a' && strToCheck.charAt(j) <= 'z';
               }
               break;
          case 'N':
               for(j = 0; j< stcLen; j++)
               {
                    rightCount += strToCheck.charAt(j) >= '0' && strToCheck.charAt(j) <= '9';
               }
               break;
          default:
               for(j = -1; -1 != (j = strToCheck.indexOf(allowedChars.charAt(i), j + 1)); rightCount++);
               break;
          }
     }
     if(rightCount == stcLen)
     {
          return true;
     }
     return false;
}

/////////////////////////////////////////////////////////////////////////////////////////
// Checks whether the first date argument is less than the second date argument
// Date arguments should be in the format - dd/mm/yyyy
/////////////////////////////////////////////////////////////////////////////////////////
function checkDateDifference(lowDate, highDate, comparison) {
	lowDateSplit = lowDate.split('/');
	highDateSplit = highDate.split('/');

	date1 = new Date();
	date2 = new Date();

	date1.setDate(lowDateSplit[0]);
	date1.setMonth(lowDateSplit[1] - 1);
	date1.setYear(lowDateSplit[2]);

	date2.setDate(highDateSplit[0]);
	date2.setMonth(highDateSplit[1] - 1);
	date2.setYear(highDateSplit[2]);




	if(comparison == "eq") {
		if(date1.getTime() == date2.getTime()) {
			return true;
		}
		else {
			return false;
		}
	}
	else if(comparison == "lt") {
		if(date1.getTime() < date2.getTime()) {
			return true;
		}
		else {
			return false;
		}
	}
	else if(comparison == "gt") {
		if(date1.getTime() > date2.getTime()) {
			return true;
		}
		else {
			return false;
		}
	}
	else if(comparison == "le") {
		if(date1.getTime() <= date2.getTime()) {
			return true;
		}
		else {
			return false;
		}
	}
	else if(comparison == "ge") {
		if(date1.getTime() >= date2.getTime()) {
			return true;
		}
		else {
			return false;
		}
	}
}

function formatCheck(dateStr) {
	dateSplit = dateStr.split("/");
	if(dateSplit.length != 3) {
		return false;
	}
	if(trimSpaces(dateSplit[0]).length <= 0 || trimSpaces(dateSplit[1]).length <= 0 || trimSpaces(dateSplit[2]).length <= 0) {
		return false;
	}
	return true;
}
function closeWindow() {
	parent.window.opener.window.focus();
	parent.window.close();
}


/////////////////////////////////////////////////////////////////////////////////////////
// Checks whether the file name have specified extensions
/////////////////////////////////////////////////////////////////////////////////////////
function checkFileExtension(fileName, allowedExtensions) {
	extensionArray = allowedExtensions.split(",");
	fileNameArray = fileName.split(".");
	if(fileNameArray.length != 2) {
		return false;
	}
	extCheck = false;
	for(extCount = 0; extCount < extensionArray.length; extCount ++) {
		if(extensionArray[extCount] == fileNameArray[1]) {
			extCheck = true;
			break;
		}
	}
	return extCheck;
}
/////////////////////////////////////////////////////////////////////////////////////////
// Checks whether the file name have specified extensions
/////////////////////////////////////////////////////////////////////////////////////////

function checkDateDifference(lowDate, highDate) {
	lowDateSplit = lowDate.split('-');
	highDateSplit = highDate.split('-');

	date1 = new Date();
	date2 = new Date();

	date1.setDate(lowDateSplit[0]);
	date1.setMonth(lowDateSplit[1] - 1);
	date1.setYear(lowDateSplit[2]);

	date2.setDate(highDateSplit[0]);
	date2.setMonth(highDateSplit[1] - 1);
	date2.setYear(highDateSplit[2]);
	if( parseInt((date2.getTime() / 86400000), 0 )  < parseInt((date1.getTime() / 86400000), 0 ) ){
		return true;
		}
	else{
		return false;
		}	

}


function show(elmnt) {
		if( (elmnt.style.display == 'none') || (elmnt.style.display == '') ) {
			elmnt.style.display = 'block';
		}	else {
			elmnt.style.display = 'none';
		}
	}
	
	
// 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);
}
function ValidatePhoneNo(Phone){	
	if (checkInternationalPhone(Phone)==false){
		DisplayMessage("Please Enter a Valid Phone Number", document.getElementById('message'), true, 2);
		//alert("Please Enter a Valid Phone Number")		
		return false;
	}
	return true
 }





var mikExpchar = /[$\\@\\\#%\^\&\*\(\)\[\]\+\_\{\}\`\~\=\|\!\a\\b\c\\d\e\\f\\g\h\\i\\j\\k\\l\\m\\n\\o\\p\\q\\r\\s\\t\\u\\v\\w\\x\\y\\z\\A\\B\\C\\D\\E\\F\\G\\H\\I\\J\\K\\L\\M\\N\\O\\P\\Q\\R\\S\\T\\U\\V\\W\\X\\Y\\Z]/;
function dodacheckchar(val) {
var strPass1 = val.value;
var strLength1 = strPass1.length;
var lchar1 = val.value.charAt((strLength1) - 1);
if(lchar1.search(mikExpchar) != -1) {
var tst1 = val.value.substring(0, (strLength1) - 1);
val.value = tst1;
   }
}
var mikExp = /[$\\@\\\#%\^\&\*\(\)\[\]\+\_\{\}\`\~\=\|\!\][1234567890]/;
function dodacheck(val) {
var strPass = val.value;
var strLength = strPass.length;
var lchar = val.value.charAt((strLength) - 1);
if(lchar.search(mikExp) != -1) {
var tst = val.value.substring(0, (strLength) - 1);
val.value = tst;
   }
}