// JavaScript Document
//****************************************
//---- MAIN INPUT VALIDATION ROUTINES ----
//****************************************
var agt = navigator.userAgent.toLowerCase();

var isNav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
         && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
         && (agt.indexOf('webtv')==-1));
var isIE = (agt.indexOf("msie") != -1);

function BGColor(input,colorstr)
{
	if (isIE) {
		input.style.backgroundColor=colorstr;
	}
}

function RequiredText(input,inputdesc)
{
	if (!_CF_hasValue(input,"TEXT")) {
		alert(inputdesc+" is required.");
		BGColor(input,'#ffcccc');
		//input.style.backgroundColor='red';
		input.focus();
		return false;
	}
	//input.style.backgroundColor='white';
	BGColor(input,'white');
	return true;
}

//Use this function to validate a Phone Number
function PhoneCheckOrEmpty(input,inputdesc)
{
 var isok=0; 
 if (input.value.length > 0) {
	//strip out -
	input.value = Trim(ReplaceString("-","",input.value));
	input.value = Trim(ReplaceString("(","",input.value));
	input.value = Trim(ReplaceString(")","",input.value));
	input.value = Trim(ReplaceString("/","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	
	if (input.value.length > 10) {
 	 //add - after 3, 6 chars
 	 input.value = input.value.substring(0,3)+'-'+
	  input.value.substring(3,6)+'-'+
	  input.value.substring(6,10)+' '+
	  input.value.substring(10,input.value.length);
	}
	if (input.value.length == 10) {
 	 //add - after 3, 6 chars
 	 input.value = input.value.substring(0,3)+'-'+
	  input.value.substring(3,6)+'-'+
	  input.value.substring(6,input.value.length);
	}
	if (input.value.length < 10) {
		alert(inputdesc+" Phone Number must be at least 10 digits or empty.");
		//input.style.backgroundColor='red';
		BGColor(input,'red');
		input.focus();
		return false;
	}
 }
//	if (!_CF_checkphone(input.value)) {
//		alert(inputdesc+" Phone Number must be in XXX-XXX-XXXX format or empty.");
		//input.style.backgroundColor='red';
//		BGColor(input,'red');
//		input.focus();
//		return false;
//	}
	//input.style.backgroundColor='white';
	BGColor(input,'white');
	return true;
}

//Use this function to validate a Social Security Number
function SSCheckOrEmpty(input,inputdesc)
{
	if (!_CF_checkssc(input.value)) {
		alert(inputdesc+" must be either\n9 consecutive digits, \nformatted as 'XXX-XX-XXXX'\nformatted as 'XXX XX XXXX',\nor empty.");
		//input.style.backgroundColor='red';
		BGColor(input,'red');
		input.focus();
		return false;
	}
	//input.style.backgroundColor='white';
	BGColor(input,'white');
	return true;
}

//Equivalent to NumericOrEmpty with no alert
function FormatValue(input,str,dec)
{
	input.value = Trim(ReplaceString(",","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	if (CheckNumber(input.value,null,null,true)) {
		if (!(dec==null)) {
			input.value = FormatStr(input.value,dec);
		}
		return true;
	}
	else {
		return false;
	}
}

//Use this function if there is no range and empty ok, just send 
//description of input value, send decplaces to format
function NumericOrEmpty(input,inputdesc,decplaces)
{
	//alert(input.name);
	input.value = Trim(ReplaceString(",","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	if (!CheckNumber(input.value,null,null,true)) {
		alert(inputdesc+" must be numeric or empty.");
		BGColor(input,'red');
		//input.style.backgroundColor='red';
		input.focus();
		return false;
	}
	if (!(decplaces==null)) {
		input.value = FormatStr(input.value,decplaces);
	}
	//input.style.backgroundColor='white';
	BGColor(input,'white');
	return true;
}
function Numeric(input,inputdesc)
{
	//alert(input.name);
	input.value = Trim(ReplaceString(",","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	if (!CheckNumber(input.value,null,null,true)) {
		alert(inputdesc+" must be numeric.");
		BGColor(input,'#ffcccc');

		//input.style.backgroundColor='red';
		input.focus();
		return false;
	}
	//input.style.backgroundColor='white';
	BGColor(input,'white');
	return true;
}

//Use this function from OnChange OR OnBlur to show msg if not valid
//Calls CheckNumber
function ValidNumber(input,msg,emptyok,min,max)
{
	input.value = Trim(ReplaceString(",","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	if (!CheckNumber(input.value,min,max,emptyok)) {
		alert(msg);
		//input.style.backgroundColor='red';
		//BGColor(input,'red');
		input.focus();
		return false;
	}
}

function CheckNumber(str,min,max,emptyok)
{	//Checks if str is a number.  str must be of type STRING
	//Must be between min and max if given.
	//Will return false if empty, unless emptyok is sent as true
	
	//str = Trim(ReplaceString(",","",str));
	//str = Trim(ReplaceString(" ","",str));
	if (str.length == 0) {
		if (emptyok == null || !emptyok) { return false }
		else { return true }
	}
	var decfound = false;
	if (str.substring(0,1) == '-') { 
		var startpt = 1 
	}
	else {
		var startpt = 0
	}
	for (var i = startpt; i < str.length; i++) {
		var ch = str.substring(i, i + 1)
		if ((ch < "0" || "9" < ch) && ch != '.') {
			return false;
		}
		if (ch == '.') {
			if (decfound) { return false; }
			else { decfound = true; }
		}
    }
	if (!(min == null && max == null)) {
		var num = parseFloat(str)
   		if (num < min || max < num) { return false; }
	}
	return true;
}

//****************************************
//--ROUTINES CALLED BY MAIN VALIDATION ROUTINES
//****************************************

function _CF_checkphone(object_value)
{
    if (object_value.length == 0)
        return true;
		
    if (object_value.length != 12)
        return false;

	// check if first 3 characters represent a valid area code
    if (!_CF_checknumber(object_value.substring(0,3)))
		return false;
    else
	if (!_CF_numberrange((eval(object_value.substring(0,3))), 100, 1000))
		return false;

	// check if area code/exchange separator is either a'-' or ' '
	if (object_value.charAt(3) != "-" && object_value.charAt(3) != " ")
        return false

	// check if  characters 5 - 7 represent a valid exchange
    if (!_CF_checknumber(object_value.substring(4,7)))
		return false;
    else
	if (!_CF_numberrange((eval(object_value.substring(4,7))), 100, 1000))
		return false;
	
	// check if exchange/number separator is either a'-' or ' '
	if (object_value.charAt(7) != "-" && object_value.charAt(7) != " ")
        return false;

	// make sure last for digits are a valid integer
	if (object_value.charAt(8) == "-" || object_value.charAt(8) == "+")
        return false;
	else
	{
		return (_CF_checkinteger(object_value.substring(8,12)));
	}
}


function _CF_checkssc(object_value)
{
	var white_space = " -";
	var ssc_string="";
	var check_char;
    if (object_value.length == 0)
        return true;
    if (object_value.length != 11 && object_value.length != 9)
        return false;

	// make sure white space is valid
	//if (object_value.charAt(3) != "-" && object_value.charAt(3) != " ")
    //    return false;

	//if (object_value.charAt(6) != "-" && object_value.charAt(6) != " ")
    //    return false;
	 
	// squish out the white space
	for (var i = 0; i < object_value.length; i++)
	{
		check_char = white_space.indexOf(object_value.charAt(i))
		if (check_char < 0)
			ssc_string += object_value.substring(i, (i + 1));
	}	

	// if all white space return error
    if (ssc_string.length != 9)
        return false;
	 	
	// make sure number is a valid integer
	if (!_CF_checkinteger(ssc_string))
		return false;
	return true;
}

function _CF_checkinteger(object_value)
{
    //Returns true if value is a number or is NULL
    //otherwise returns false	

    if (object_value.length == 0)
        return true;

    //Returns true if value is an integer defined as
    //   having an optional leading + or -.
    //   otherwise containing only the characters 0-9.
	var decimal_format = ".";
	var check_char;

    //The first character can be + -  blank or a digit.
	check_char = object_value.indexOf(decimal_format)
    //Was it a decimal?
    if (check_char < 1)
	return _CF_checknumber(object_value);
    else
	return false;
}
//Called from many routines
function _CF_hasValue(obj, obj_type)
{
    if (obj_type == "TEXT" || obj_type == "PASSWORD")
	{
    	if (obj.value.length == 0) 
      		return false;
    	else 
      		return true;
    	}
    else if (obj_type == "SELECT")
	{
        for (i=0; i < obj.length; i++)
	    	{
		if (obj.options[i].selected)
			return true;
		}
       	return false;	
	}
    else if (obj_type == "SINGLE_VALUE_RADIO" || obj_type == "SINGLE_VALUE_CHECKBOX")
	{
		if (obj.checked)
			return true;
		else
       		return false;	
	}
    else if (obj_type == "RADIO" || obj_type == "CHECKBOX")
	{
        for (i=0; i < obj.length; i++)
	    	{
		if (obj[i].checked)
			return true;
		}
       	return false;	
	}
}

//called by _CF_checkrange (which is called from _CF_checkdate
function _CF_numberrange(object_value, min_value, max_value)
{
    // check minimum
    if (min_value != null)
	{
        if (object_value < min_value)
		return false;
	}

    // check maximum
    if (max_value != null)
	{
	if (object_value > max_value)
		return false;
	}
	
    //All tests passed, so...
    return true;
}

//called by _CF_CheckDate
function _CF_checknumber(object_value)
{
    //Returns true if value is a number or is NULL
    //otherwise returns false	

    if (object_value.length == 0)
        return true;

    //Returns true if value is a number defined as
    //   having an optional leading + or -.
    //   having at most 1 decimal point.
    //   otherwise containing only the characters 0-9.
	var start_format = " .+-0123456789";
	var number_format = " .0123456789";
	var check_char;
	var decimal = false;
	var trailing_blank = false;
	var digits = false;

    //The first character can be + - .  blank or a digit.
	check_char = start_format.indexOf(object_value.charAt(0))
    //Was it a decimal?
	if (check_char == 1)
	    decimal = true;
	else if (check_char < 1)
		return false;
        
	//Remaining characters can be only . or a digit, but only one decimal.
	for (var i = 1; i < object_value.length; i++)
	{
		check_char = number_format.indexOf(object_value.charAt(i))
		if (check_char < 0)
			return false;
		else if (check_char == 1)
		{
			if (decimal)		// Second decimal.
				return false;
			else
				decimal = true;
		}
		else if (check_char == 0)
		{
			if (decimal || digits)	
				trailing_blank = true;
        // ignore leading blanks

		}
	        else if (trailing_blank)
			return false;
		else
			digits = true;
	}	
    //All tests passed, so...
    return true
}

//****************************************
//-- STRING ROUNTINES
//****************************************

function FormatStr(input,dec) //Formats input with dec decimal places
{	//input must be of TYPE string (cast if necessary)
	if (input.length == 0) { return "" }
	var decpt=input.indexOf(".");
	if ((decpt == -1) || (input.length-(1+decpt)<=dec)) {
		if (decpt == -1 && dec>0) { input +='.'; decpt=input.length-1; }
		var len=input.length;
		for (var i=0; i < dec-(len-(1+decpt)); i++) {
			input += '0';
		}
		return input;
	}
	else {
		return FormatStr(String((Math.round(input*Math.pow(10,dec)))/Math.pow(10,dec)),dec);
	}
}

function LTrim(input) 
{
	for (var i = 0; i < input.length; i++) {
    	if (input.charAt(i)==" ") {
			input = input.substring(i+1);
			i = -1;
		}
		else { return input; }
	}
	return input;
}

function RTrim(input) 
{
	for (var i = input.length - 1; i >= 0; i--) {
		if (input.charAt(i)==" ") {
			input = input.substring(0,input.length-2);
			i = input.length;
		}
		else { return input; }
	}
	return input;
}

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

function ReplaceString(oldS,newS,fullS) 
{	//Replace all instances of oldS with newS in fullS
	for (var i=0; i<fullS.length; i++) {
		if (fullS.substring(i,i+oldS.length) == oldS) {
			fullS = fullS.substring(0,i)+ newS + fullS.substring(i+oldS.length,fullS.length)
		}
	}
	return fullS;
}

function FixPhone(input)
{
 if (input.value.length > 0) {
	//strip out -
	input.value = Trim(ReplaceString("-","",input.value));
	input.value = Trim(ReplaceString("(","",input.value));
	input.value = Trim(ReplaceString(")","",input.value));
	input.value = Trim(ReplaceString("/","",input.value));
	input.value = Trim(ReplaceString(" ","",input.value));
	
	//add - after 3, 6 chars
	input.value = input.value.substring(0,3)+'-'+
	 input.value.substring(3,6)+'-'+
	 input.value.substring(6,input.value.length);
 }
}

//****************************************
//-- END OF JAVASCRIPT FUNCTIONS
//****************************************