var fullMonthArray = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
var shortMonthArray = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");

function indexOfValueInSelectList(value_to_find, select_list)
{
	for (x = 0; x < select_list.length; x++)
	{
		if (select_list[x].value == value_to_find)
			return x;
	}
	
	return -1;
}

function zeroOrIndexOfValueInSelectList(value_to_find, select_list)
{
	index_value = indexOfValueInSelectList(value_to_find, select_list);
	
	if (index_value < 0)
		return 0;
	else
		return index_value;
}

function indexOfCheckedRadioItem(radio_list)
{
	for (x = 0; x < radio_list.length; x++)
	{
		if (radio_list[x].checked)
			return x;
	}
	
	return -1;
}

function indexOfValueInCheckedRadioItem(radio_list, value_of_radio)
{
	for (x = 0; x < radio_list.length; x++)
	{
		if (radio_list[x].value == value_of_radio)
			return x;
	}
	
	return -1;
}

function setRadioButtonByValue(radio, value_of_radio)
{
	for (x = 0; x < radio.length; x++)
	{
		if (radio[x].value == value_of_radio)
		{
			radio[x].checked = true;
			return;
		}
	}
}

function valueOfCheckedRadioButton(radio)
{
	for (x = 0; x < radio.length; x++)
	{
		if (radio[x].checked)
			return radio[x].value;
	}
	
	return "";
}

function isValidNumber(number_string)
{
	if (number_string == "" || isNaN(number_string) || number_string.indexOf(" ") >= 0)
		return false;
	else
		return true;
}

function isDate(month, day, year)
{
	if (isNaN(month) || isNaN(day) || isNaN(year))
	{
		return false;
	}
	else
	{
		if (day.length == 1)
			day = '0' + day;

		if (month.length == 1)
			month = '0' + month;

		if (year.length == 2)
		{
			if (year > 49)
				year = '19' + year;
			else
				year = '20' + year;
		}

		if (day.length != 2 || month.length != 2 || year.length != 4)
			return false;

		//check the values
		if (isNaN(day) || day < 0 || day.indexOf(',') != -1 || day.indexOf('.') != -1 || day.indexOf('-') != -1)
			return false;

		if (isNaN(month) || month < 0 || month.indexOf(',') != -1 || month.indexOf('.') != -1 || month.indexOf('-') != -1)
			return false;

		if (isNaN(year) || year < 0 || year.indexOf(',') != -1 || year.indexOf('.') != -1 || year.indexOf('-') != -1)
			return false;

		if (month < 1 || month > 12)
			return false;

		if (day < 1 || day > 31)
			return false;

		//check months with 30 days
		if (month == 4 || month == 6 || month == 9 || month == 11) {
			if (day == 31)
				return false;
		}

		// Check for February and leap year.
		if (month == 2)
		{
			//February can't have a date > 29 at any point.
			if (day > 29)
				return false;

			//If the day is set to the 29th then check for a leap year.
			if (day == 29 && ((year / 4)!= parseInt(year / 4)))
				return false;
		}
	}

	return true;
}

function isFutureDate(current_year, current_month, current_day, check_year, check_month, check_day)
{
	//current_year, current_month, current_day - values for today's date.
	//check_year, check_month, check_day - values for the date we are comparing.
	
	if (check_year > current_year)
	{
		//The year is in the future.
		return true;
	}
	else if (check_year == current_year)
	{
		//It is the current year, check for months.
		if (check_month > current_month)
		{
			//The month is in the future.
			return true;
		}
		else if (check_month == current_month)
		{
			//It is the current month of the current_year.
			if (check_day > current_day)
			{
				//The day is in the future.
				return true;
			}
		}
	}

	return false;
}

/*
This function was retrieved from the following url: http://javascript.internet.com/forms/email-address-validation.html
*/
function isValidEmailAddress(emailStr) {
	var checkTLD = 1;
	var knownDomsPat = /^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat = /^(.+)@(.+)$/;
	var specialChars = "\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars = "\[^\\s" + specialChars + "\]";
	var quotedUser = "(\"[^\"]*\")";
	var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom = validChars + '+';
	var word = "(" + atom + "|" + quotedUser + ")";
	var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat = new RegExp("^" + atom + "(\\." + atom + ")*$");

	var matchArray = emailStr.match(emailPat);

	if (matchArray == null)
		return false;

	var user = matchArray[1];
	var domain = matchArray[2];

	for (i = 0; i < user.length; i++)
	{
		if (user.charCodeAt(i) > 127)
			return false;
	}

	for (i = 0; i < domain.length; i++)
	{
		if (domain.charCodeAt(i) > 127)
			return false;
	}

	if (user.match(userPat) == null)
		return false;

	var IPArray = domain.match(ipDomainPat);

	if (IPArray != null)
	{
		for (var i = 1; i <= 4; i++)
		{
			if (IPArray[i] > 255)
				return false;
		}
		
		return true;
	}

	var atomPat = new RegExp("^" + atom + "$");
	var domArr = domain.split(".");
	var len = domArr.length;
	
	for (i = 0; i < len; i++)
	{
		if (domArr[i].search(atomPat) == -1)
			return false;
	}

	if (checkTLD && domArr[domArr.length - 1].length != 2 && domArr[domArr.length - 1].search(knownDomsPat) == -1)
		return false;

	if (len < 2)
		return false;

	return true;
}

/*
The Trim() functions were retrieved from the following url: http://www.vermontsoftware.com/Javascript/trim.html
*/
function LTrim(str)
{
   var whitespace = new String(" \t\n\r");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(0)) != -1) {
      // We have a string with leading blank(s)...

      var j=0, i = s.length;

      // Iterate from the far left of string until we
      // don't have any more whitespace...
      while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
         j++;

      // Get the substring from the first non-whitespace
      // character to the end of the string...
      s = s.substring(j, i);
   }
   return s;
}

function RTrim(str)
{
   // We don't want to trip JUST spaces, but also tabs,
   // line feeds, etc.  Add anything else you want to
   // "trim" here in Whitespace
   var whitespace = new String(" \t\n\r");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
      // We have a string with trailing blank(s)...

      var i = s.length - 1;       // Get length of string

      // Iterate from the far right of string until we
      // don't have any more whitespace...
      while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
         i--;


      // Get the substring from the front of the string to
      // where the last non-whitespace character is...
      s = s.substring(0, i+1);
   }

   return s;
}

function Trim(str)
{
   return RTrim(LTrim(str));
}

function completeUnsizedPopupWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "TOOLBAR=YES,STATUS=YES,MENUBAR=YES,LOCATION=YES,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function completeSizedPopupWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "WIDTH=600,HEIGHT=400,TOOLBAR=YES,STATUS=YES,MENUBAR=YES,LOCATION=YES,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function basicPopupWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "WIDTH=600,HEIGHT=400,TOOLBAR=YES,STATUS=YES,MENUBAR=YES,LOCATION=NO,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function strippedPopupWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "WIDTH=450,HEIGHT=300,TOOLBAR=NO,STATUS=NO,MENUBAR=NO,LOCATION=NO,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function strippedDentistWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "WIDTH=550,HEIGHT=300,TOOLBAR=NO,STATUS=NO,MENUBAR=NO,LOCATION=NO,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function strippedFullPopupWindow(url_to_open, window_name)
{
	window_name = window.open(url_to_open, window_name, "WIDTH=600,HEIGHT=400,TOOLBAR=NO,STATUS=NO,MENUBAR=NO,LOCATION=NO,SCROLLBARS=YES,RESIZABLE=YES");
	window_name.focus();
}

function popupPopupWindow(term)
{
	strippedPopupWindow("http://www.dentalinsurance.com/di/web/common/pages/popup.aspx?type=popup&term=" + term, "glossary_popup");
}

function glossaryPopupWindow(term)
{
	strippedPopupWindow("http://www.dentalinsurance.com/di/web/common/pages/popup.aspx?type=glossary&term=" + term, "glossary_popup");
}

//http://www.4guysfromrolla.com/webtech/111298-1.shtml
//Modified by Joe
function FormatNumber(num, decimalNum)
{
	var tmpNum = num;

	// Return the right number of decimal places
	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(tmpNum);
	tmpNum /= Math.pow(10,decimalNum);

	number_string = new String(tmpNum);

	if (decimalNum > 0)
	{
		decimal_index = number_string.indexOf(".");
		
		if (decimal_index >= 0)
		{
			difference_in_trailing_zeros = number_string.length - (decimal_index + 1);

			if (decimalNum > difference_in_trailing_zeros)
				number_string += String("0", difference_in_trailing_zeros);
		}
		else
			number_string += ".00";
	}

	return number_string;
}

function stripAlphaCharactersFromNumberString(number_string)
{
	new_string = "";

	for (index = 0; index < number_string.length; index++)
	{
		current_char = number_string.charAt(index);

		if ((current_char >= '0' && current_char <= '9') || current_char == '.')
			new_string += current_char;
	}

	return new_string;
}

function fullMonthForZeroBasedIndex(zero_based_index)
{
	if (zero_based_index > 11)
		zero_based_index -= 12;

	return fullMonthArray[zero_based_index];
}

function shortMonthForZeroBasedIndex(zero_based_index)
{
	if (zero_based_index > 11)
		zero_based_index -= 12;

	return shortMonthArray[zero_based_index];
}

function isValidZipCode(zip_code)
{
	if  (isNaN(zip_code) || zip_code.length != 5 || zip_code.indexOf(" ") >= 0)
		return false;
	else
		return true;
}

//added by George Partida 12/09/2004
function isEmpty(s) 
{
	var whitespace = " \t\n\r";
	var i;
	if((s == null) || (s.length == 0))
		return true;
	for(i = 0; i < s.length; i++) {
		var c = s.charAt(i);
		if (whitespace.indexOf(c) == -1)
			return false;
	}
	//All characters are whitespace
	return true;
}

function isEmptyOrValidNumber(number_string)
{
	if(isEmpty(number_string) || isValidNumber(number_string))
		return true;
	else
		return false;
}

function isValidPhoneNumber(area_string,prefix_string,suffix_string)
{
	return (isValidNumber(area_string) && area_string.length == 3 && isValidNumber(prefix_string) && prefix_string.length == 3 && isValidNumber(suffix_string) && suffix_string.length == 4)
}

function isValidSSN(lead_string,mid_string,last_string)
{
	return (isValidNumber(lead_string) && lead_string.length == 3 && isValidNumber(mid_string) && mid_string.length == 2 && isValidNumber(last_string) && last_string.length == 4)
}

function isEmptyOrDate(month_value, day_value, year_value)
{
	if(isEmpty(month_value) && isEmpty(day_value) && isEmpty(year_value))
		return true;
	return isDate(month_value,day_value,year_value);
}

function isEmptyOrEmail(email_string)
{
	if(isEmpty(email_string) || isValidEmailAddress(email_string))
		return true;
	else
		return false;
}

function isEmptyOrPhone(area_string,prefix_string,suffix_string)
{
	if((isEmpty(area_string) && isEmpty(prefix_string) && isEmpty(suffix_string)) || isValidPhoneNumber(area_string,prefix_string,suffix_string))
		return true;
	else
		return false;
}

function isValidMod10AccountNumber(card_number)
{
	//Validates a credit card number for cards that support the Mod 10 algorithm.
	index = 0;
	normal_values = 0;
	special_values = 0;
	
	//Read digits from right to left, performing special data checking on 
	//every other digit (second digit from right is first special digit).
	while (card_number.length > index)
	{		
		//Get the next digit in from right.
		next_digit_position = (card_number.length - 1) - index;
		next_digit = card_number.substring(next_digit_position, next_digit_position + 1);

		//If at any time the value is not a digit, the number is invalid.
		if (next_digit < 0 || next_digit > 9)
			return false;
			
		//Get the value of the digit.
		value_of_digit = eval(next_digit);
			
		if ((index % 2) == 0)
		{
			//If it is an even number (we are using a zero based index), then
			//it is a normal value and no special processing is required.
			normal_values += value_of_digit;
		}
		else
		{
			//If it is an odd number, then we must take additional steps.
			//First, multiply the digit by two.
			temp_value = value_of_digit * 2;
			
			//Second, add each digit together to form one number.
			//Example: 4 * 2 = 8, Add eight to special_values.
			//Example: 7 * 2 = 14, 1 + 4 = 5, Add five to special_values.
			if (temp_value >= 10)
			{
				switch (temp_value)
				{
					case 10:
						temp_value = 1 + 0;
						break;
					case 12:
						temp_value = 1 + 2;
						break;
					case 14:
						temp_value = 1 + 4;
						break;
					case 16:
						temp_value = 1 + 6;
						break;
					case 18:
						temp_value = 1 + 8;
						break;
				}
			}

			//Our new value has been calculated, add it to special_values.			
			special_values += temp_value;
		}
		
		//Move to next digit.
		index++;
	}
	
	//Once all the digits on the card have been calculated, add them together.
	final_value = normal_values + special_values;
	
	//If final_value can be divided by ten leaving no remainder, then it is valid.
	return ((final_value % 10) == 0);
}

function isCreditCardNumberValid(card_type, card_number)
{
	if (card_type == "Amex")
		return isAmexCardNumberValid(card_number);
	else if (card_type == "Discover")
		return isDiscoverCardNumberValid(card_number);
	else if (card_type == "MasterCard")
		return isMasterCardCardNumberValid(card_number);
	else if (card_type == "Visa")
		return isVisaCardNumberValid(card_number);
	else
		return false;
}

function isAmexCardNumberValid(card_number)
{
	//American Express cards have a length of 15 digits...
	if (card_number.length != 15)
		return false;
	
	//must start with 34 or 37 as the first two digits...
	first_two_digits = card_number.substring(0, 2);
	
	if (first_two_digits != "34" && first_two_digits != "37")
		return false;
	
	//and must have a valid Mod 10 account number.
	return isValidMod10AccountNumber(card_number);
}

function isDiscoverCardNumberValid(card_number)
{
	//Discover cards have a length of 16 digits...
	if (card_number.length != 16)
		return false;
	
	//must start with 6011 as the first four digits...
	first_four_digits = card_number.substring(0, 4);
	
	if (first_four_digits != "6011")
		return false;
	
	//and must have a valid Mod 10 account number.
	return isValidMod10AccountNumber(card_number);
}

function isMasterCardCardNumberValid(card_number)
{
	//MasterCard cards have a length of 16 digits...
	if (card_number.length != 16)
		return false;
	
	//must start with 51-55 as the first two digits...
	first_two_digits = card_number.substring(0, 2);
	
	if (first_two_digits < "51" || first_two_digits > "55")
		return false;
	
	//and must have a valid Mod 10 account number.
	return isValidMod10AccountNumber(card_number);
}

function isVisaCardNumberValid(card_number)
{	
	//Visa cards have a length of 13 or 16 digits...
	if (card_number.length != 13 && card_number.length != 16)
		return false;
	
	//must start with 4 as the first digit...
	first_digit = card_number.substring(0, 1);
	
	if (first_digit != "4")
		return false;
	
	//and must have a valid Mod 10 account number.
	return isValidMod10AccountNumber(card_number);
}