// JavaScript Document



// Check if string is non-blank
function isNonblank (s) {
	var isNonblank_re    = /\S/;
	return String (s).search (isNonblank_re) != -1
}
   
// Check if string is a whole number(digits only).
function isWhole (s) {
	var isWhole_re       = /^\s*\d+\s*$/;
	return String(s).search (isWhole_re) != -1
}
   
// check 0-9 digit
function regIsDigit(fData)
{
    var reg = new RegExp("^[0-9]$");
    return (reg.test(fData));
}
   
// checks that an input string is an integer, with an optional +/- sign character.
function isInteger (s) {
	var isInteger_re     = /^\s*(\+|-)?\d+\s*$/;
	return String(s).search (isInteger_re) != -1
}

// check is number
function regIsNumber(fData)
{
    var reg = new RegExp("^[-]?[0-9]+[\.]?[0-9]+$");
    return reg.test(fData)
}

// Checks that an input string is a decimal number, with an optional +/- sign character.
function isDecimal (s) {
	var isDecimal_re     = /^\s*(\+|-)?((\d+(\.\d+)?)|(\.\d+))\s*$/;
	return String(s).search (isDecimal_re) != -1
}

// Check if string is currency
function isCurrency (s) {
	var isCurrency_re    = /^\s*(\+|-)?((\d+(\.\d\d)?)|(\.\d\d))\s*$/;
	return String(s).search (isCurrency_re) != -1
}
   
// checks that an input string looks like a valid email address.
function isEmail (s) {
	var isEmail_re       = /^\s*[\w\-\+_]+(\.[\w\-\+_]+)*\@[\w\-\+_]+\.[\w\-\+_]+(\.[\w\-\+_]+)*\s*$/;
	return String(s).search (isEmail_re) != -1;
}
   
// Check if string is a valid email address
function regIsEmail(fData)
{
  var reg = new RegExp("^[0-9a-zA-Z]+@[0-9a-zA-Z]+[\.]{1}[0-9a-zA-Z]+[\.]?[0-9a-zA-Z]+$");
  return reg.test(fData);
}
   
// Check for valid credit card type/number

function isValidCC (cctype, ccnumber) {
	var creditCardList = [
	   //type      prefix   length
	   ["amex",    "34",    15],
	   ["amex",    "37",    15],
	   ["disc",    "6011",  16],
	   ["mc",      "51",    16],
	   ["mc",      "52",    16],
	   ["mc",      "53",    16],
	   ["mc",      "54",    16],
	   ["mc",      "55",    16],
	   ["visa",    "4",     13],
	   ["visa",    "4",     16]
	];	
	
   var cc = getdigits (ccnumber);
   if (luhn (cc)) {
      for (var i in creditCardList) {
         if (creditCardList [i][0] == (cctype.toLowerCase ())) {
            if (cc.indexOf (creditCardList [i][1]) == 0) {
               if (creditCardList [i][2] == cc.length) {
                  return true;
               }
            }
         }
      }
   }
   return false;
}
  
function luhn (cc) {
   var sum = 0;
   var i;
 
   for (i = cc.length - 2; i >= 0; i -= 2) {
      sum += Array (0, 2, 4, 6, 8, 1, 3, 5, 7, 9) [parseInt (cc.charAt (i), 10)];
   }
   for (i = cc.length - 1; i >= 0; i -= 2) {
      sum += parseInt (cc.charAt (i), 10);
   }
   return (sum % 10) == 0;
}
  
// This returns a string with everything but the digits removed.
function getdigits (s) {
   return s.replace (/[^\d]/g, "");
}
   
// Get String Length
function regGetStrLength(fData)
{
    var valLength = fData.length;
    var reg = new RegExp("^[\u0391-\uFFE5]$");
    var result = 0;
    for(i=0; i< valLength; i++)
    {
        if(reg.test(fData.charAt(i)))
        {
            result += 2;
        }
        else
        {
            result ++;
        }
    }
    return result;
}