//For Selecting/ deselecting check boxed
	function clearerror()
	{
	 return;
	}
	window.onerror=clearerror;
	
	function selectDeselect(field, isCheck) {
		var boxes = document.getElementsByName(field);
		var boxes_checked = anyChecked();
		if(isCheck){
			if(document.getElementsByName(isCheck)[0].checked) setChecks(true);
			else setChecks(false);
		}else{
			if(!boxes_checked) setChecks(true);
			else setChecks(false);
		}	

		function setChecks( setting ) {
			for( var i=0; i < boxes.length; i++ ) {
				boxes[ i ].checked = setting;
			}
		}

		function anyChecked() {
			for( var i=0; i < boxes.length; i++ ) {
				if( boxes[i].checked == true) {
					return (true);
				} 
			}
			return (false);
		}
	}

	//To check wheather user have selected box or not
	function anyChecked() {
		for( var i=0; i < boxes.length; i++ ) {
			if( boxes[i].checked == true) {
				return (true);
			} 
		}
		return (false);
	}

	//For checking Null values
	function isNull(aStr)
	{
		var index;
		for (index=0; index < aStr.length; index++)
			if (aStr.charAt(index) != ' ')
				return false;
		return true;
	}	

	//For checking invalid E-Mail address
	function isEmail(aStr)
	{
		var reEmail=/^[0-9a-zA-Z_\.-]+\@[0-9a-zA-Z_\.-]+\.[0-9a-zA-Z_\.-]+$/;
		if(!reEmail.test(aStr)) {
			return false;
		}
		return true;
	}

	//Removing the newline character
	function countChars(str)
	{
		var reg = new RegExp("[\f\n\r\v]*","g");
		str = str.replace(reg,"");
		return str.length;   
	}

	//For checking invalid Numaric
	function isNum(aStr){
		var reNum=/^[0-9.]+$/;
		if(!reNum.test(aStr)) {
			return false;
		}
		return true;
	}

	function chknewslatter()
	{
		if(!isEmail(document.subscription.email_add.value)) {
			alert("Please enter valid Email Address.");
			document.subscription.email_add.focus();
			return (false);
		}
		return (true);
	}

	//For checking invalid AlphaNumaric
	function isAlphaNumaric(aStr){
		var reNum=/^[0-9.a-zA-Z_]+$/;
		if(!reNum.test(aStr)) {
			return false;
		}
		return true;
	}

	//	Start: is valid uszip code
	function isZip(str)	{
		if (str.indexOf("-",0) > 0)  var t = /^\d{5}-\d{4}$/
		else var t = /^\d{5}$/
		return t.test(str)
	}

	//	Start: is valid URL
	function isURL(argvalue) {
	  if (argvalue.indexOf(" ") != -1)
		return false;
	  else if (argvalue.indexOf("http://") == -1 || argvalue.indexOf("https://") == -1)
		return false;
	  else if (argvalue == "http://")
		return false;
	  else if (argvalue.indexOf("http://") > 0 || argvalue.indexOf("https://") > 0 )
		return false;
	  argvalue = argvalue.substring(7, argvalue.length);
	  if (argvalue.indexOf(".") == -1)
		return false;
	  else if (argvalue.indexOf(".") == 0)
		return false;
	  else if (argvalue.charAt(argvalue.length - 1) == ".")
		return false;
	  if (argvalue.indexOf("/") != -1) {
		argvalue = argvalue.substring(0, argvalue.indexOf("/"));
		if (argvalue.charAt(argvalue.length - 1) == ".")
		  return false;
	  }	

	  if (argvalue.indexOf(":") != -1) {
		if (argvalue.indexOf(":") == (argvalue.length - 1))
		  return false;
		else if (argvalue.charAt(argvalue.indexOf(":") + 1) == ".")
		  return false;
		argvalue = argvalue.substring(0, argvalue.indexOf(":"));
		if (argvalue.charAt(argvalue.length - 1) == ".")
		  return false;
	  }
  return true;
}

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
function isValidDate(dateStr) {
// Checks for the following valid date formats:
// MM/DD/YY   MM/DD/YYYY   MM-DD-YY   MM-DD-YYYY
// Also separates date into month, day, and year variables
var datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{2}|\d{4})$/;

// To require a 4 digit year entry, use this line instead:
// var datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{4})$/;

var matchArray = dateStr.match(datePat); // is the format ok?
if (matchArray == null) {
alert("Date is not in a valid format.")
return true;
}
month = matchArray[1]; // parse date into variables
day = matchArray[3];
year = matchArray[4];
if (month < 1 || month > 12) { // check month range
alert("Month must be between 1 and 12.");
return true;
}
if (day < 1 || day > 31) {
alert("Day must be between 1 and 31.");
return true;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31) {
alert("Month "+month+" doesn't have 31 days!")
return true
}
if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day>29 || (day==29 && !isleap)) {
alert("February " + year + " doesn't have " + day + " days!");
return true;
   }
}
return false;  // date is valid
}
//  End -->
/***********************************************************************************/
	function invalidLength(field, message, intMin, intMax)
	{
		if(countChars(field.value) < intMin || countChars(field.value) > intMax) {
			alert(message+intMin+" to "+intMax);
			field.focus();
			return true;
		}
		return false;
	 }
	function blankField(field, message)
	{
		if(isNull(leftTrim(field.value)) || leftTrim(field.value)=="") {
			alert(message);
			field.value="";
			field.focus();
			return true;
		}
		return false;
	 }
	/*
	 Function to check CMS Value is Null
	*/
	function blankCMS(field, message)
	{
		if(isNull(leftTrim(field.value))) {
			alert(message);
			return true;
		}
		return false;
	 }
	 
	function invalidEmail(field, message)
	{
		if(!isEmail1(field.value)) {
			alert(message);
			field.focus();
			return true;
		}
		return false;
	 }
	 
	function equalField(field1, field2, message)
	{
		if(field1.value != field2.value) {
			alert(message);
			field2.focus();
			return true;
		}
		return false;
	 }
	 
	function invalidDate(field1, field2, field3)
	{	
		if (isValidDate(field1.value+"/"+field2.value+"/"+field3.value) == false){
//			alert(message);
			field1.focus()
			return true;
		}
	}
	 
	function invalidEmailList(field, message)
	{
		var b = field.value;
		var temp = new Array();
		temp = b.split(',');
		for(var i = 0; i < temp.length; i++)
		{
			if(!isEmail(temp[i])) {
				alert(message);
				field.focus();
				return true;
			}
		}
		return false;
	}
	
	
	function invalidAvailableUsername(field, message)
	{
		if(isNull(field.value)) {
			alert(message);
			field.focus();
			return true;
		}
		return false;
	 }
	 
	function invalidUrl(field, message)
	{	
		if (!isVUrl(field.value)){
			alert(message);
			field.focus()
			return true;
		}
	}
	 
	function invalidNumber(field, message)
	{	
		if (!isNum(field.value)){
			alert(message);
			field.focus()
			return true;
		}
	}
	 
	function invalidAlphaNumaric(field, message)
	{	
		if (!isAlphaNumaric(field.value)){
			alert(message);
			field.focus()
			return true;
		}
	}
	 
	function invalidFileFormat(field, message)
	{
		if ((field.value != "")) {
			myString = new String(field.value);					
			//splitString = myString.split(".");
			//arr=splitString.length;
			start=myString.lastIndexOf(".");
			argvalue = myString.substring(start, myString.length);		
			if(argvalue.toLowerCase() != ".gif" && argvalue.toLowerCase() != ".png" && argvalue.toLowerCase() != ".jpg" )					
			{					
				alert(message);
				field.focus()
				return true;					
			}					
		}
	}
	
	function ISPDF(field, message)
	{
		if ((field.value != "")) {
			myString = new String(field.value);					
			splitString = myString.split(".");
			start=myString.lastIndexOf(".");
			argvalue = myString.substring(start, myString.length);		
			if (argvalue.toLowerCase() != "pdf" )					
			{					
				alert(message);
				field.focus()
				return true;					
			}					
		}
	}
	
function ISDOC(field, message)
	{
		if ((field.value != "")) {
			myString = new String(field.value);					
			splitString = myString.split(".");
			start=myString.lastIndexOf(".");
			argvalue = myString.substring(start, myString.length);		
			if (argvalue.toLowerCase() != "doc" )					
			{					
				alert(message);
				field.focus()
				return true;					
			}					
		}
	}
		

	function invalidFromToZip(field1, field2)
	{	
		if ((isNum(field1.value) & !isNum(field2.value)) | (!isNum(field1.value) & isNum(field2.value))){
			alert(AI_FROMTOZIPCODE);
			if(isNum(field1.value))
				field2.focus()
			else
				field1.focus()				
			return true;
		}
	}
/***********************************************************************************/

function isEmail1(field)//email checking
{
	var atPosition, dotPosition, lastPosition;
	//with (formInput)
	//{
		aPosition = field.indexOf("@");
		dotPosition = field.lastIndexOf(".");
		lastPosition = field.length-1;
		if (aPosition < 1 || dotPosition - aPosition < 2 || lastPosition - dotPosition > 6 || lastPosition - dotPosition < 2)
		{
			return(false);
		}
		return(true);
	//}
}





function compareDates (value1, value2) 
{
	var start = new Date (value1);
	var end = new Date (value2);
	if(start<end)
		return 0;
	else
		return 1;
} 


/**
 * DHTML phone number validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// 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 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){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}


function isVUrl(s)
 {
	var regexp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/
	return regexp.test(s);
}



function frm_submit(tmp)
{
tmp.submit();
}


function leftTrim(sString) 
{
  while (sString.substring(0,1) == ' ' || sString.substring(0,1) == "\n" || sString.substring(0,1) == "\r" || sString.substring(0,1) == "\t")
   {
       sString = sString.substring(1, sString.length);
   }
  return sString;
}