function isEmailAddr(email) {
	var result = false;
    var theStr = new String(email);
  	var index = theStr.indexOf("@");
  if (index > 0) {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function fieldEmpty(formField) {
	var result = true;
	if (formField.value == "") {
		result = false;
	}	
	return result;
}

function validSelection(formField,fieldLabel) {
	var result = true;
	if (formField.options[0].selected) {
		alert('Please select a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}	
	return result;
}
   function validPassword(formField1,formField2){
   	var result = true;
	
	if (formField1.value != formField2.value){
		//alert('The password and confirmation password are not the same.');
		formField1.value="" ;
		formField2.value="";
		formField1.focus();
		result = false;
	}	
	return result;
}

   function validChannel(formField1,formField2){
   	var result = true;
	
	if (formField1.value != formField2.value){
		alert('Channel and Confirm Channel are not equal');
		formField1.value="" ;
		formField2.value="";
		formField1.focus();
		result = false;
	}	
	return result;
}


	function checkEmail(formField1,formField2){
   	var result = true;	
	if (formField1.value != formField2.value){
		alert('E-mail ID and Confirm E-mail ID are not equal');
		formField2.value="";
		formField1.focus();
		result = false;
	}	
	return result;
}
function validRequired(formField,fieldLabel) {
	var result = true;
	
	if (formField.value == "" ) {
		
		if (fieldLabel == "Bug Message"){
		
		alert('Please enter a bug message.');
		formField.focus();
		result = false;
		
		} 
		else 
		{
		
			if ( fieldLabel == "e-mail address" )
				{
					alert('Please enter an e-mail address.');
				} 
				else
				{
					if ( fieldLabel == "password" )
					{
						alert('Please enter a password.');
					}
					else
					{
						alert('Please enter a value for the "' + fieldLabel +'" field.');	
					}
				}
		formField.focus();
		result = false;
		}
	}
	
	return result;
}

function validRequiredx7ab(formField,fieldLabel) {
	var result = true;
	
	if (formField.value == "" ) {
		alert('Please enter an e-mail address in the form: name@domain.com');
		formField.focus();
		result = false;
	}
	
	return result;
}

function validEmailRequiredonx7a(formField,fieldLabel) {
	var result = true;
	
	if (formField.value == "" ) {
		
		if (fieldLabel == "Bug Message"){
		
		alert('Please enter a bug message.');
		formField.focus();
		result = false;
		
		} else {
		
		alert('Please enter an e-mail address in the form: name@domain.com');
		formField.focus();
		result = false;
		
		}
	}
	
	return result;
}

	function validLength(formField,fieldLabel) {
	var result = true;
	
	if (formField.value.length<6) {
		alert('Please enter a value for the "' + fieldLabel +'" field which is at least 6 characters in length.');
		formField.focus();
		result = false;
	}	
	return result;
}
/*	function displayLength(formField,fieldLabel) {
	var result = true;
	
	if (formField.value.length<3) {
		alert('Please enter a value for the "' + fieldLabel +'" field atleast 6 char length.');
		formField.focus();
		result = false;
	}	
	return result;
}*/
function allDigits(str) {
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset) {
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0) {
			result = false;
			break;
		}
	return result;
}

function validEmail(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter a complete e-mail address in the form: name@pickle.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}

function validEmail1(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter an e-mail address in the form: name@domain.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}

function validEmailx7a(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequiredx7ab(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter an e-mail address in the form: name@domain.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}

function validFromEmail(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter an e-mail address in the form: name@domain.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}




function validEmail2(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter a complete e-mail Address in the form: name@domain.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}


function validEmailhome(formField,fieldLabel,required) {
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel)) {
		result = false;
	}

	if (formField.value){
		if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) ) {
			alert("Please enter a login e-mail in the form: name@domain.com");
			formField.focus();
			result = false;
		}
	}
  return result;
}


function validTelNo(formField) {
  var result = true;
	var valid = "+-0123456789"
	var ok = "yes";
	var temp;
	 if (formField.value.length<6 )
	 	{
		 	ok="no";
	 		alert("Not a  valid phone number");
	 	}
		for (var i=0; i<formField.value.length; i++) {
				temp = "" + formField.value.substring(i, i+1);
				if (valid.indexOf(temp) == "-1") ok = "no";
		}

		
		if (ok == "no") {
				result = false ;
				alert("Invalid entry!  Only '+ , -' and numbers are accepted!");
				formField.value="";
				formField.focus();
			}

   return result ;
}

function validFolderEntry(formField) {
  var result = true;
	var valid = "abcdefghijklmnopqrstuwvwxyzABCDEFGHIJKLMNOOPQRSTUVWXYZ0123456789 "
	var ok = "yes";
	var temp;
		for (var i=0; i<formField.value.length; i++) {
				temp = "" + formField.value.substring(i, i+1);
				if (valid.indexOf(temp) == "-1") ok = "no";
		}

		
		if (ok == "no") {
				result = false ;
				alert("Invalid entry!  No Special Characters, Only alphanumeric and space are accepted!");
				formField.value="";
				formField.focus();
			}

   return result ;
}
function keywordentry(formField) {
  var result = true;
	var valid = "abcdefghijklmnopqrstuwvwxyzABCDEFGHIJKLMNOOPQRSTUVWXYZ0123456789,'"
	var ok = "yes";
	var temp;
		for (var i=0; i<formField.value.length; i++) {
				temp = "" + formField.value.substring(i, i+1);
				if (valid.indexOf(temp) == "-1") ok = "no";
		}

		
		if (ok == "no") {
				result = false ;
				alert("Invalid entry!  No Space and Special Characters, Only alphanumeric Seperated by comma are accepted!");
				formField.value="";
				formField.focus();
			}

   return result ;
}


function validNum(formField,fieldLabel,required) {
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result) {
 		if (!allDigits(formField.value)) {
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validInt(formField,fieldLabel,required) {
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result) {
 		var num = parseInt(formField.value);
 		if (isNaN(num)) {
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validDate(formField,fieldLabel,required) {
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result) {
		if (formField.value){
			var elems = formField.value.split("default.htm");
 		
 			result = (elems.length == 3); // should be three components
 		
 			if (result) {
				var day = elems[0];
  			var month = elems[1];
 				var year = elems[2];
				result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
								 allDigits(elems[1]) && (day > 0) && (day < 32) &&
								 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
			}
			
		}
		
	
		if (!result) {
			alert('Please enter a date in the format DD/MM/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	return result;
}

function validUSDate(formField,fieldLabel,required) {
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result) {
		if (formField.value){
			var elems = formField.value.split("default.htm");
 		
 			result = (elems.length == 3); // should be three components
 		
 			if (result) {
				var day = elems[1];
  			var month = elems[0];
 				var year = elems[2];
				result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
								 allDigits(elems[1]) && (day > 0) && (day < 32) &&
								 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
			}
		}
	
		if (!result) {
			alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	return result;
}


function radioSelected (checkbox) {
	var result = false;
	var checkboxGroup = checkbox //checkbox.form[checkbox.name];

	for (var c = 0; c < checkboxGroup.length; c++)
		if (checkboxGroup[c].checked)
			 result = true;

	return result;
}

function check (checkbox) {
	var result = false;

		if (checkbox.checked)
			 result = true;

	return result;
}

// Function to Check Credit Card Type and Length including Luhn Check (Using Mod 10)

function CheckCardNumber(cardType,cardNumber)
{

	  var isValid = false;
	  var ccCheckRegExp = /[^\d ]/;
	  isValid = !ccCheckRegExp.test(cardNumber);

  if (isValid)
  {
		var cardNumbersOnly = cardNumber.replace(/ /g,"");
		var cardNumberLength = cardNumbersOnly.length;
		var lengthIsValid = false;
		var prefixIsValid = false;
		var prefixRegExp;

    switch(cardType)
    {
		  case "Mastercard":
			lengthIsValid = (cardNumberLength == 16);
			prefixRegExp = /^5[1-5]/;
			break;

		  case "Visa":
			lengthIsValid = (cardNumberLength == 16);
			prefixRegExp = /^4/;
			break;

		  case "American Express":
			lengthIsValid = (cardNumberLength == 15 || cardNumberLength == 16);
			prefixRegExp = /^3(4|7)/;
			break;

		  case "Discover":
			lengthIsValid = (cardNumberLength == 16);
			prefixRegExp = /^6/;
			break;

		  default:
			prefixRegExp = /^$/;
			alert("Card type not found");
    }

		prefixIsValid = prefixRegExp.test(cardNumbersOnly);
		isValid = prefixIsValid && lengthIsValid;

 }


  if (isValid)
  {
		var numberProduct;
		var numberProductDigitIndex;
		var checkSumTotal = 0;

		for (digitCounter = cardNumberLength - 1;  digitCounter >= 0;  digitCounter--)
		{
			  checkSumTotal += parseInt (cardNumbersOnly.charAt(digitCounter));
			  digitCounter--;
			  numberProduct = String((cardNumbersOnly.charAt(digitCounter) * 2));

			  for (var productDigitCounter = 0;	productDigitCounter < numberProduct.length; productDigitCounter++)
			  {
				checkSumTotal += 
				  parseInt(numberProduct.charAt(productDigitCounter));
			  }

		}

				isValid = (checkSumTotal % 10 == 0);
  }

  return isValid;
}