//The contents of this file is protected under the United States
//copyright laws as an unpublished work, and is confidential and proprietary to
//LaGarde, Incorporated.  Its use or disclosure in whole or in part without the
//expressed written permission of LaGarde, Incorporated is expressly prohibited.

//(c) Copyright 2000 by LaGarde, Incorporated.  All rights reserved.

//Revisions and extensions to StoreFront 5 AE by Prolifique, copyright 2003.
function stripChar(sValue, sChar) {
  var i, tempChar, buildString;
  buildString = "";
  for (var i=0; i<sValue.length; i++) {
    tempChar = sValue.charAt(i);
    if (tempChar != sChar)
      buildString = buildString + tempChar;
    }
  return buildString;
  }

function isCardDateValid(year, month) {
  var dateCheck, now;
  now = new Date();
  dateCheck = new Date(year, month);
  return (now <= dateCheck);
  }

function isCardNumValid(num) {
  var num1, num2, tempNum;
  if (!isNumber(num))
    return true;
  num1 = "";
  if (!(num.length%2==0)) {
    for(var j=0; j < num.length; j++) {
      if ((j+1)%2==0)
        tempNum = 2 * num.charAt(j);
      else
        tempNum = 1 * num.charAt(j);
      num1 = num1 + tempNum.toString();
      }
    }
  else {
    for(var j=0; j < num.length; j++) {
      if ((j+1)%2==0)
        tempNum = 1 * num.charAt(j);
      else
        tempNum = 2 * num.charAt(j);
      num1 = num1 + tempNum.toString();
      }
    }
  num2 = 0;
  for (var j = 0; j < num1.length; j++) {
    num2 = num2 + parseInt(num1.charAt(j));
    }
  if (num2%10==0)
    return false;
  else
    return true;
  }

function isNumber(value) {
  for (var i=0; i<value.length; i++) {
    a = parseInt(value.charAt(i));
    if (isNaN(a)) {
      return false;
      break;
      }
    }
  return true;
  }

function sfCheck(form) {
  var e, title, empty_fields, char_check, invalid_card, month, year, invalid_date, eMail, invalid_eMail;
  var iQuantity, quantity_check, checkSpecial, tempError, special_Error, msg, upperLine, lowerLine;
  var num, invalid_phoneNumber, passwd_mismatch;
  msg = "";
  empty_fields = "";
  char_check = "";
  special_Error = "";
  tempError = "";
  num = form.length
  for (var i = 0; i < form.length; i++) {
    e = form.elements[i]
    if ((e.title == null)||(e.title == ""))
      title = e.name;
    else
      title = e.title;
    // Check text, textarea and password boxes only in next routine.
    if (((e.type == "text") || (e.type == "textarea") || (e.type == "password")) && !e.special && !e.disabled) {
      if (e.value.length <= 0 && !e.optional) {
        empty_fields += "\n            " + title;
        continue;
        }
      if (e.number) {
        num = e.value;
        num = stripChar(num, ".");
        num = stripChar(num, ",");
        if (!isNumber(num)) {
          char_check += "\n             " + title;
          }
        }
      if (e.creditCardNumber) {
        e.value = stripChar(e.value, " ");
        e.value = stripChar(e.value, "-");
        invalid_card = isCardNumValid(e.value);
        }
      if (e.name == "txtEmail" || e.name == "txtFriend")
        invalid_eMail = !isValidEmailAddress(e.value);
      if (e.phoneNumber && stripChar(e.value," ") != "") {
        num = e.value;
        num = stripChar(num, " ");
        num = stripChar(num, "-");
        num = stripChar(num, "+");
        if (num.length < 10)
          invalid_phoneNumber = true;
        }
      }
    // Check credit card expiration date select boxes (added by Prolifique).
    if ((e.creditCardExpMonth) || (e.creditCardExpYear)) {
      if (e.creditCardExpMonth) {
        month = e.value;
        if (!isNumber(month)) {
          invalid_date = true;
          month = null;
          }
        }
      if (e.creditCardExpYear) {
        year = e.value;
        if (!isNumber(year)) {
          invalid_date = true;
          year = null;
          }
        }
      if ((month != null) && (year != null)) {
        if (!isCardDateValid(year, month))
          invalid_date = true;
        }
      }
    // Check other fields.
    if (e.quantityBox) {
      iQuantity = e.value;
      if (!isNumber(iQuantity))
        quantity_check = true;
      if (parseInt(iQuantity) < 0)
        quantity_check = true;
      if ((iQuantity) < 1)
        quantity_check = true;
      }
    if (e.password) {
      if (form.Password.value != form.Password2.value)
        passwd_mismatch = true;
      }
    if (e.special) {
      checkSpecial = "";
      if ((e.name == "CardName")||(e.name == "CardNumber")||(e.name == "CardExpiryMonth")||(e.name == "CardExpiryYear")) {
        if (((form.CardName.value.length <= 0)||(form.CardNumber.value.length <= 0)||(form.CardExpiryMonth.value.length <= 0)||(form.CardExpiryYear.value.length <= 0)) && ((form.CardName.value.length > 0)||(form.CardNumber.value.length > 0)||(form.CardExpiryMonth.value.length > 0)||(form.CardExpiryYear.value.length > 0)))
          checkSpecial = "Please enter all credit card information.";
        if ((form.CardName.value.length > 0)&&(form.CardNumber.value.length > 0)&&(form.CardExpiryMonth.value.length > 0)&&(form.CardExpiryYear.value.length > 0)) {
          if (!isCardDateValid(form.CardExpiryYear.value, form.CardExpiryMonth.value))
            checkSpecial = "The Credit Card has Expired.";
          if (isCardNumValid(form.CardNumber.value))
            checkSpecial = "The credit card number is in an invalid format.";
          }
        }
      else if ((e.name == "CheckNumber")||(e.name == "BankName")||(e.name == "RoutingNumber")||(e.name == "CheckingAccountNumber")) {
        if (((form.CheckNumber.value.length <= 0)||(form.BankName.value.length <= 0)||(form.RoutingNumber.value.length <= 0)||(form.CheckingAccountNumber.value.length <= 0)) && ((form.CheckNumber.value.length > 0)||(form.BankName.value.length > 0)||(form.RoutingNumber.value.length > 0)||(form.CheckingAccountNumber.value.length > 0)))
          checkSpecial = "Please enter all eCheck information.";
        }
      else if ((e.name == "POName")||(e.name == "PONumber")) {
        if (((form.POName.value.length <= 0)||(form.PONumber.value.length <= 0)) && ((form.POName.value.length > 0)||(form.PONumber.value.length > 0)))
          checkSpecial = "Please enter all purchase order information.";
        }
      else if ((form.CardName.value.length <= 0)&&(form.CardNumber.value.length <= 0)&&(form.CardExpiryMonth.value.length <= 0)&&(form.CardExpiryYear.value.length <= 0) && (form.CheckNumber.value.length <= 0)&&(form.BankName.value.length <= 0)&&(form.RoutingNumber.value.length <= 0)&&(form.CheckingAccountNumber.value.length <= 0) && (form.POName.value.length <= 0)&&(form.PONumber.value.length <= 0))
        checkSpecial = "Please enter payment method information.";
      if (tempError != checkSpecial)
        special_Error = special_Error + checkSpecial;
      tempError = checkSpecial;
      }
    if (e.type == "select-one" && !e.optional) {
      if (e.value == "") {
        empty_fields += "\n            " + title;
        continue;
        }
      }
    }
  if (!empty_fields && !char_check && !special_Error && !invalid_card && !invalid_date && !invalid_eMail && !quantity_check && !invalid_phoneNumber && !passwd_mismatch) {
    return true;
    }

  msg = "The form was not submited due to the following error(s).\n";
  upperLine = "\n_________________________________________________________\n\n";
  lowerLine = "_________________________________________________________\n";

  if (empty_fields) {
    msg += upperLine;
    msg += "The following field(s) must be filled in:\n";
    msg += lowerLine;
    msg += empty_fields;
    }
  if (char_check) {
    msg += upperLine;
    msg += "The following field(s) need a numeric value:\n";
    msg += lowerLine;
    msg += char_check;
    }
  if (quantity_check) {
    msg += upperLine;
    msg += "Please enter a positive integer.\n"
    msg += lowerLine;
    }
  if (invalid_card) {
    msg += upperLine;
    msg += "The credit card number is in an invalid format.\n";
    msg += lowerLine;
    }
  if (invalid_date) {
    msg += upperLine;
    msg += "The credit card has expired.\n";
    msg += lowerLine;
    }
  if (invalid_eMail) {
    msg += upperLine;
    msg += "The e-mail address is in an invalid format.\n";
    msg += lowerLine;
    }
  if (invalid_phoneNumber) {
    msg += upperLine;
    msg += "Please enter a valid phone number with area code (10 digits).\n";
    msg += lowerLine;
    }
  if (special_Error) {
    msg += upperLine;
    msg += special_Error + "\n";
    msg += lowerLine;
    }
  if (passwd_mismatch) {
    msg += upperLine;
    msg += "Your passwords did not match. Please enter them again.\n";
    msg += lowerLine;
    }
  alert(msg);
  return false;
  }

function POCheck(poname,poNum) {
  if (poname == "" || poNum == "") {
    alert("Please enter the required purchase order information");
    return false;
    }
  else {
    return true;
    }
  }

function isValidEmailAddress(email) {
/*
  Check email address for valid syntax & structure.
  If regular expressions available (as of JavaScript 1.2), use that for thorough check.
  (Note that we use an eval statement to prevent earlier browsers from choking on the regex syntax.
  Also note that all the backslashes in the regex pattern have to be escaped as a result.)
  If no regex, just do a simple string check for illegal characters.
*/
  if (!email)
    return false;
  else if (window.RegExp)
    return eval("/^([!#-'\\*\\+\\-\\/-9=\\?A-Z\\^-~]+(\\.[!#-'\\*\\+\\-\\/-9=\\?A-Z\\^-~]+)*|\"[\\x01-\\x09\\x0B\\x0C\\x0E-\\x21\\x23-\\x5B\\x5D-\\x7F]*\")@(([a-zA-Z0-9][-a-zA-Z0-9]*[a-zA-Z0-9]\\.)+[a-zA-Z]{2,}|\\[(([0-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([0-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\])$/i.test(email)");
  else {  // Just do a simple check for illegal characters
    var iChars = "*|,\":<>[]{}`\';()&$#%";
    for (var i = 0; i < email.length; i++) {
      if (iChars.indexOf(email.charAt(i)) != -1)
        return false;
      }
    return true;
    }
  }