var whitespace = " \t\n\r";
var defaultEmptyOK = false
function isEmpty(s)
{   
    return ((s == null) || (s.length == 0))
}
function isWhitespace (s)
{
   var i;
    if (isEmpty(s)) return true;
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }
    return true;
}
function checkEmpty(field,msg)
{
	if(isWhitespace(field.value) || isEmpty(field.value) )
     {
                alert(msg);
                field.focus();
                return true;
     }
}
function isEmail (s)
{
   if (isEmpty(s)) 
       if (isEmail.arguments.length == 1) return defaultEmptyOK;
           else return (isEmail.arguments[1] == true);
        if (isWhitespace(s)) return false;
        var i = 1;
        var sLength = s.length;
        while ((i < sLength) && (s.charAt(i) != "@"))
        { i++
        }
        if ((i >= sLength) || (s.charAt(i) != "@")) return false;
        else i += 2;
        while ((i < sLength) && (s.charAt(i) != "."))
        { i++
        }
        if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
        else return true;
}
function checkMail(field,msg)
{
	if(!isEmail(field.value))
     {
                alert(msg);
                field.focus();
                return true;
     }
}
function isDigit (c)
{   
    return ((c >= "0") && (c <= "9"))
}
function isInteger (s)
{   var i;
    if (isEmpty(s)) 
       if (isInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isInteger.arguments[1] == true);
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (!isDigit(c)) return false;
    }
    return true;
}
function checkInteger(field,msg)
{
	if(!isInteger(field.value))
     {
                alert(msg);
		field.value="";
                field.focus();
                return true;
     }
}
function isSelected(s)
{   
    return ((s == 0) || (s == "") || (s == "-1"))
}
function checkDropdown(field,msg)
{
	if(isSelected(field.value))
     {
                alert(msg);
                field.focus();
                return true;
     }
}
function filterFileType(field, ext) 
{
if (field.value.indexOf('.' + ext) == -1) {
return false;
}
return true;
}
function checkUpload(field,msg,ext)
{
	if (!filterFileType(field,ext))
     {
                alert(msg);
                field.focus();
                return true;
     }
}

function StringTrim(objvalue)
{
    var TestString = objvalue;
    var SpaceChar  = " ";
    while (TestString.charAt(0) == SpaceChar) {TestString = TestString.substr(1)};
    while (TestString.charAt(TestString.length-1) == SpaceChar) {TestString = TestString.substr(0,TestString.length-1)};
    return TestString.toString();
}

function checkBoxArray(Fldname,Msg)
{
var len=Fldname.length;
var chk=-1;
for (var i = 0;i<len;i++)
{	
	if(Fldname[i].checked==true)
	{
		chk=i;
	}
}
		if(chk==-1)
		{
			alert(Msg);
			return false;
		}	
		return true;
}
function checkOptButton(Fldname,Msg)
{
	myOption = -1;
	for (i=0; i<Fldname.length; i++) 
	{
		if (Fldname[i].checked)
		{
			myOption = i;
		}
	}
	if (myOption == -1)
	{
		alert(Msg);
		return true;
	}
	else
	{
	   return false;
	}
}
function isAlphanumeric (s)
{   var i;
    if (isEmpty(s))
       if (isAlphanumeric.arguments.length == 1) return defaultEmptyOK;
       else return (isAlphanumeric.arguments[1] == true);
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (! (isLetter(c) || isDigit(c) ) )
        return false;
    }
    return true;
}
function isLetter (c)
{   
    return ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) || (c == "_") )
}
function isDigit (c)
{   
    return ((c >= "0") && (c <= "9"))
}
function isNonnegativeInteger (s)
{   var secondArg = defaultEmptyOK;
    if (isNonnegativeInteger.arguments.length > 1)
        secondArg = isNonnegativeInteger.arguments[1];
    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) >= 0) ) );
}
function isSignedInteger (s)
{   if (isEmpty(s)) 
       if (isSignedInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedInteger.arguments[1] == true);
    else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;
        if (isSignedInteger.arguments.length > 1)
            secondArg = isSignedInteger.arguments[1];
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") )
           startPos = 1;    
        return (isInteger(s.substring(startPos, s.length), secondArg))
    }
}



var digits = "0123456789";
var phoneNumberDelimiters = "()- ";
var validWorldPhoneChars = phoneNumberDelimiters + "+";
var minDigitsInIPhoneNumber = 10;
function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
         var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
     return true;
}

function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
     for (i = 0; i < s.length; i++)
    {   
         var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}



function checkDecimals(fieldName) {
decallowed = 2;
var fieldValue = fieldName.value;
if (isNaN(fieldValue) || fieldValue == "") {
alert("Please enter a valid number.");
fieldName.select();
fieldName.focus();
}
else {
if (fieldValue.indexOf('.') == -1) fieldValue += ".";
dectext = fieldValue.substring(fieldValue.indexOf('.')+1, fieldValue.length);
if (dectext.length > decallowed)
{
alert ("Please enter a number with up to " + decallowed + " decimal places.  Please try again.");
fieldName.select();
fieldName.focus();
      }
else {
		return true;
      }
   }
}



function checkBoxvalidation(Fldname,Msg)
{
		if(!Fldname.checked)
		{
			alert(Msg);
			return true;
		} 
  }
var dtCh= "-";
var minYear=2007;
var maxYear=2900;
function isInteger_dmy(s){
	var i;
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    return true;
}
function stripCharsInBag_dmy(s, bag){
	var i;
    var returnString = "";
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary_dmy(year){
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray_dmy(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_dmy(dtStr){
	var daysInMonth = DaysArray_dmy(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_dmy(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_dmy(stripCharsInBag_dmy(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}
function IsValidTime(timeStr) {
var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;
var matchArray = timeStr.match(timePat);
if (matchArray == null) {
alert("Time is not in a valid format.");
return false;
}
hour = matchArray[1];
minute = matchArray[2];
second = matchArray[4];
ampm = matchArray[6];
if (second=="") { second = null; }
if (ampm=="") { ampm = null }
if (hour < 0  || hour > 23) {
alert("Hour must be between 0 and 23");
return false;
}
if (minute<0 || minute > 59) {
alert ("Minute must be between 0 and 59.");
return false;
}
if (second != null && (second < 0 || second > 59)) {
alert ("Second must be between 0 and 59.");
return false;
}
return true;
}