var whitespace = " \t\n\r";

var digitsInZIPCode1 = 5
var digitsInZIPCode2 = 9
var defaultEmptyOK = false

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function stripWhitespace (s)

{   return stripCharsInBag (s, whitespace)
}

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 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 Trim(string)
{
 var newStr = "";
 newStr = RTrim(LTrim(string));
 return (newStr);	
}

function LTrim(string)
{
 var oldStr = string;
 var newStr = "";
 var notDone = true;
 for (i = 0;  i < oldStr.length;  i++)
 {
   ch = oldStr.charAt(i);
   if (ch==" " && notDone)
   {
    // remove spaces 
   }
   else
   {
	newStr = newStr + ch;
	notDone = false;
   }
 }
 return (newStr);	
}
function RTrim(string)
{
 var oldStr = string;
 var newStr = "";
 var notDone = true;
 for (i = oldStr.length-1;  i >= 0;  i--)
 {
   ch = oldStr.charAt(i);
   if (ch==" " && notDone)
   {
    // remove spaces 
   }
   else
   {
	newStr = ch + newStr;
	notDone = false;
   }
 }
 return (newStr);	
}
function isValidName (s)
{   var i;
	var p;
    var strInvalid;
    
    strInvalid = "!@#$%^&*()_+|\={}][:;<>?/`~1234567890"
    if (isWhitespace(s)) {
		return false;
	}

    for (i = 0; i < s.length; i++)
    {   
        for (p = 0; p < strInvalid.length; p++)
        {
			if (s.charAt(i) == strInvalid.charAt(p)) {
				return false;
			}
        }
    }

    return true;
}

function isZIPCode (s)
{  if (isEmpty(s)) 
       if (isZIPCode.arguments.length == 1) return defaultEmptyOK;
       else return (isZIPCode.arguments[1] == true);
   return (isInteger(s) && 
            ((s.length == digitsInZIPCode1) ||
             (s.length == digitsInZIPCode2)))
}


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) != " ") && (s.charAt(i) != ","))
    	{ i++
    	}
	if ((s.charAt(i) == " ") || (s.charAt(i) == ",")) {
		return false;
	}

	i = 1
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    while ((i < sLength) && (s.charAt(i) != ".") && (s.charAt(i) != "@"))
    { i++
    }

	if (s.charAt(i) == "@") {
		return false;
	}

    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}
function IsMyAcctConfirmPhoneValid(phone){

	if (phone.length!=12 || !isDigit(phone.charAt(0))|| !isDigit(phone.charAt(1)) || !isDigit(phone.charAt(2)) || !isDigit(phone.charAt(4)) || !isDigit(phone.charAt(5)) || !isDigit(phone.charAt(6)) || !isDigit(phone.charAt(8)) || !isDigit(phone.charAt(9)) || !isDigit(phone.charAt(10)) || !isDigit(phone.charAt(11)) || phone.charAt(3)!="-"||phone.charAt(7)!="-")
	{
		return false;
	}
	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 isURL(strURL) 
{	
	var i = 1;
    var sLength = strURL.length;
    var strLastThree
	
	if (isEmpty(strURL)) {
		return false;
	}
       
	if (isWhitespace(strURL)) {
		return false;
	}
    
    while ((i < sLength) && (strURL.charAt(i) != ","))
    { i++
    }
    
    if (strURL.charAt(i) == ",") {
		return false;
	}
    
    i = 1;
    while ((i < sLength) && (strURL.charAt(i) != "."))
    { i++
    }

    if ((i >= sLength) || (strURL.charAt(i) != ".")) {
		return false;
	}
    else {
		i += 2;
	}

    while ((i < sLength) && (strURL.charAt(i) != "."))
    { i++
    }
    if ((i >= sLength - 1) || (strURL.charAt(i) != ".")) {
		return false;
	}
	i++
	strLastThree = strURL.substring (i);
	strLastThree = strLastThree.toUpperCase();

	return true;
}