var reWhitespace = /^\s+$/
var reAlphabetic = /^[a-zA-Z]+$/
var reAlphanumeric = /^[a-zA-Z0-9]+$/
var reDigit = /^\d/
var reLetterOrDigit = /^([a-zA-Z]|\d)$/
var reInteger = /^\d+$/
var reFloat = /^((\d+(\.\d*)?)|((\d*\.)?\d+))$/
var reEmail = /^.+\@.+\..+$/
//var reCES = /(^\G008\-\d{3}$)|(^\G008\-\d{3}[A-Z]$)/

var	reCSI = /(^\d{6}$)|(^\d{6}\.\d{2}$)/

///^((01)|(02)|(03)|(04)|(05)|(06)|(07)|(08)|(09)|(10)|(11)|(12)|(13)|(14)|(15)|(16))\d{3}$/
var reCredits = /(^\d$)|(^\d\s\or\s\d$)/
var reWeb_Link = /(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/



// VARIABLE DECLARATIONS

var digits = "0123456789";
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var whitespace = " \t\n\r";
var phoneNumberDelimiters = "()- ";
var validUSPhoneChars = digits + phoneNumberDelimiters;
var digitsInUSPhoneNumber = 10;
var ZIPCodeDelimiters = "-";
var ZIPCodeDelimeter = "-"
var validZIPCodeChars = digits + ZIPCodeDelimiters
var digitsInZIPCode1 = 5
var digitsInZIPCode2 = 9

var mPrefix = "You did not enter a value into the "
var mSuffix = " field. This is a required field. Please enter it now."

var sLastName = "Last Name"
var sFirstName = "First Name"
var	sExecName = "Name of Chapter Executive"
var sTitle = "Title"
var sCompany_Name = "Company Name"
var sAddress = "Street Address"
var sCity = "City"
var sStateCode = "State Code"
var sZIPCode = "ZIP Code"
var sPhone = "Phone Number"
var sFax = "Fax Number"
var sCoOverview = "Company Overview"
var sEmail = "Email"
var sCES = "CES Program No."
var sCSI = "CSI Section No."
var sClass = "Company Classification"
var sUserName = "User Name"
var sPassword = "Password"
var sWeb_Site = "Web Site"
var sMain_Group = "Main Group"
var sMain_CSI_Section = "Main CSI Section"
var sSpecific_Item = "Specific Item"
var sDescription = "Description"
var sWeb_Link  = "Web Link"
var sKeywords = "Keywords"
var sProgramTitle = "Program Title"
var sLength = "Program Length"
var sCredits = "Program Credits"
var sPDescription = "Program Description"
var sEvent = "Event Name"
var sLocation = "Location of Event"
var sContact = "Event Contact"

var iCompany_Name = "Please enter the name of your company."
var iStateCode = "Use a valid two character U.S. state abbreviation (like CA for California). Please enter it now."
var iZIPCode = "This field must be a 5 or 9 digit U.S. ZIP Code (like 94043 or 94043-1234). Please enter it now."
var iUSPhone = "This field must be a 10 digit U.S. phone number (like (415) 555-1212). Please enter it now."
var iEmail = "This field must be a valid email address (like foo@bar.com). Please enter it now."
var iCES = "This field must be a valid CES Program number (like G008-104 or G008-104A). Please enter it now."
var iCSI = "This field must be a valid CSI Section number (like 04 42 00 or 11 20 00.99). Please enter it now."
var iCoOverview = "A brief overview of the firm is required.  Please enter it now."
var iUserName = "Enter a User Name."
var iPassword = "Enter a six character password."
var iMain_Group = "Enter the Main Group for this product or service (such as the manufacturer's name)."
var iMain_CSI_Section = "Enter the most specific CSI Section for this product."
var iSpecific_Item = "Enter the precise name or description for this item."
var iDescription = "Enter a description of the product/service or topic."
var iKeywords = "Enter keywords associated with your product/service."
var iProgramTitle = "Enter the Program Title."
var iCredits = "Enter the number as '1' or as '1 or 2')."
var iPDescription = "Enter the Program Description."
var iEvent = "Enter Event Name"
var iLocation = "Enter the Event Location:  Venue, City"
var iContact = "Enter the Contact for the Event."
var iWeb_Link = "Enter a valid web address for this product or service."

var pEntryPrompt = "Please "
var pCompany_Name = "enter your firm's name."
var pAddress = "enter the main office address."
var pContact_Address = "enter your location."
var pLocAddress = "enter the branch location."
var pCity = "enter the city."
var pStateCode = "enter a 2 character code (like CA)."
var pZIPCode = "enter a 5 or 9 digit ZIP Code (like 94043)."
var pUSPhone = "enter a 10 digit phone number (like 415 555 1212)."
var pEmail = "enter a valid email address (like foo@bar.com)."
var pCoOverview = "enter a brief description of the firm."
//var pCES = "enter a valid CES Program number (like G008-104 or G008-104A)."
var pCSI = "enter a valid CSI Section number (like 044200 or 112000.99)."
var pClass = "select the best class description for your firm."
var pUserName = "enter a UserName."
var pPassword = "enter a six character password."
var pFirstName = "enter your first name."
var pLastName = "enter your last name."
var pExecName = "enter the Chapter Executive's name."
var pChAddress = "enter the Chapter address."
var pTitle = "enter your title(s) (like 'CSI')."
var pExecTitle = "enter his/her title (like 'President' or 'Executive Director')"
var pWeb_Site = "enter your firm's web address."
var pFacilitator = "select 'Yes' if you are a Facilitator for CES classes."
var pLaison = "select the AIA chapter(s) for which you are a Laison."
var pBoard = "select the position you hold on the PCSC board."
var pMain_Group = "enter the Main Group (i.e., the manufacturer or service category)for this product or service."
var pMain_CSI_Section = "enter the CSI Section most appropriate for this product/service."
var pSpecific_Item = "enter the precise name of the product/service or discussion topic."
var pDescription = "enter a description of the product/service or discussion topic."
var pWeb_Link = "enter the URL of the web page for this product or service."
var pKeywords = "enter keywords associated with your offering."
var pProgramTitle = "enter the Program Title."
var pLength = "enter the Program Length (like '1' or '1 or 2')."
var pCredits = "enter the number of Program Credits (like '1' or '1 or 2')."
var pPDescription = "enter the Program Description."
var pEvent = "enter the Event Name."
var pLocation = "enter the Event Location:  Venue, City."
var pContact = "enter the Contact for the Event."
var pChapter = "enter the AIA Chapter name."

var defaultEmptyOK = false

function makeArray(n) {
   for (var i = 1; i <= n; i++) {
      this[i] = 0
   } 
   return this
}


var USStateCodeDelimiter = "|";
var USStateCodes = "AL|AK|AS|AZ|AR|CA|CO|CT|DE|DC|FM|FL|GA|GU|HI|ID|IL|IN|IA|KS|KY|LA|ME|MH|MD|MA|MI|MN|MS|MO|MT|NE|NV|NH|NJ|NM|NY|NC|ND|MP|OH|OK|OR|PW|PA|PR|RI|SC|SD|TN|TX|UT|VT|VI|VA|WA|WV|WI|WY|AE|AA|AE|AE|AP"

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

function isWhitespace (s)

{   // Is s empty?
    return (isEmpty(s) || reWhitespace.test(s));
}


function stripCharsInRE (s, bag)

{       return s.replace(bag, "")
}


function stripCharsInBag (s, bag)

{   var i;
    var returnString = "";

    for (i = 0; i < s.length; i++)
    {   

        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }

    return returnString;
}

function stripCharsNotInBag (s, bag)

{   var i;
    var 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 stripWhitespace (s)

{   return stripCharsInBag (s, whitespace)
}

function charInString (c, s)
{   for (i = 0; i < s.length; i++)
    {   if (s.charAt(i) == c) return true;
    }
    return false
}

function stripInitialWhitespace (s)

{   var i = 0;

    while ((i < s.length) && charInString (s.charAt(i), whitespace))
       i++;
    
    return s.substring (i, s.length);
}


function isLetter (c)
{   return reLetter.test(c)
}

function isDigit (c)
{   return reDigit.test(c)
}

function isLetterOrDigit (c)
{   return reLetterOrDigit.test(c)
}

function isInteger (s)

{   var i;

    if (isEmpty(s)) 
       if (isInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isInteger.arguments[1] == true);

    return reInteger.test(s)
}


function isSignedInteger (s)

{   if (isEmpty(s)) 
       if (isSignedInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedInteger.arguments[1] == true);

    
    else {
       return reSignedInteger.test(s)
    }
}

function isPositiveInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isPositiveInteger.arguments.length > 1)
        secondArg = isPositiveInteger.arguments[1];

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) > 0) ) );
}

function isNonnegativeInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNonnegativeInteger.arguments.length > 1)
        secondArg = isNonnegativeInteger.arguments[1];

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) >= 0) ) );
}

function isNegativeInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNegativeInteger.arguments.length > 1)
        secondArg = isNegativeInteger.arguments[1];

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) < 0) ) );
}

function isNonpositiveInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNonpositiveInteger.arguments.length > 1)
        secondArg = isNonpositiveInteger.arguments[1];

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) <= 0) ) );
}

function isFloat (s)

{   if (isEmpty(s)) 
       if (isFloat.arguments.length == 1) return defaultEmptyOK;
       else return (isFloat.arguments[1] == true);

    return reFloat.test(s)
}

function isSignedFloat (s)

{   if (isEmpty(s)) 
       if (isSignedFloat.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedFloat.arguments[1] == true);

    else {
       return reSignedFloat.test(s)
    }
}

function isAlphabetic (s)

{   var i;

    if (isEmpty(s)) 
       if (isAlphabetic.arguments.length == 1) return defaultEmptyOK;
       else return (isAlphabetic.arguments[1] == true);

    else {
       return reAlphabetic.test(s)
    }
}

function isAlphanumeric (s)

{   var i;

    if (isEmpty(s)) 
       if (isAlphanumeric.arguments.length == 1) return defaultEmptyOK;
       else return (isAlphanumeric.arguments[1] == true);

    else {
       return reAlphanumeric.test(s)
    }
}


function reformat (s)

{   var arg;
    var sPos = 0;
    var resultString = "";

    for (var i = 1; i < reformat.arguments.length; i++) {
       arg = reformat.arguments[i];
       if (i % 2 == 1) resultString += arg;
       else {
           resultString += s.substring(sPos, sPos + arg);
           sPos += arg;
       }
    }
    return resultString;
}

function isUSPhoneNumber (s)
{   if (isEmpty(s)) 
       if (isUSPhoneNumber.arguments.length == 1) return defaultEmptyOK;
       else return (isUSPhoneNumber.arguments[1] == true);
    return (isInteger(s) && s.length == digitsInUSPhoneNumber)
}

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 isStateCode(s)
{   if (isEmpty(s)) 
       if (isStateCode.arguments.length == 1) return defaultEmptyOK;
       else return (isStateCode.arguments[1] == true);
    return ( (USStateCodes.indexOf(s) != -1) &&
             (s.indexOf(USStateCodeDelimiter) == -1) )
}

//function isCES (s)

//{	if (isEmpty(s))
//	   if (isCES.arguments.length == 1) return defaultEmptyOK;
//       else return (isCES.arguments[1] == true);
    
//    else {
//       return reCES.test(s)
//    }
//}

function isCSI (s)

{	if (isEmpty(s))
	   if (isCSI.arguments.length == 1) return defaultEmptyOK;
       else return (isCSI.arguments[1] == true);
    
    else {
       return reCSI.test(s)
    }
}

function isCredits (s)

{	if (isEmpty(s))
	   if (isCredits.arguments.length == 1) return defaultEmptyOK;
       else return (isCredits.arguments[1] == true);
    
    else {
       return reCredits.test(s)
    }
}

function isEmail (s)

{   if (isEmpty(s)) 
       if (isEmail.arguments.length == 1) return defaultEmptyOK;
       else return (isEmail.arguments[1] == true);
    
    else {
       return reEmail.test(s)
    }
}

function isWeb_Link (s)

{   if (isEmpty(s)) 
       if (isEmail.arguments.length == 1) return defaultEmptyOK;
       else return (isEmail.arguments[1] == true);
    
    else {
       return reWeb_Link.test(s)
    }
}

function isIntegerInRange (s, a, b)
{   if (isEmpty(s)) 
       if (isIntegerInRange.arguments.length == 1) return defaultEmptyOK;
       else return (isIntegerInRange.arguments[1] == true);
    if (!isInteger(s, false)) return false;
    var num = parseInt (s);
    return ((num >= a) && (num <= b));
}

function prompt (s)
{   window.status = s
}

function promptEntry (s)
{   window.status = pEntryPrompt + s
}

function warnEmpty (theField, s)
{   theField.focus()
    alert(mPrefix + s + mSuffix)
    return false
}


function warnInvalid (theField, s)
{   theField.focus()
    theField.select()
    alert(s)
    return false
}

function checkString (theField, s, emptyOK)
{   // Next line is needed on NN3 to avoid "undefined is not a number" error
    // in equality comparison below.
    if (checkString.arguments.length == 2) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (isWhitespace(theField.value)) 
       return warnEmpty (theField, s);
    else return true;
}

function checkStateCode (theField, emptyOK)
{   if (checkStateCode.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {  theField.value = theField.value.toUpperCase();
       if (!isStateCode(theField.value, false)) 
          return warnInvalid (theField, iStateCode);
       else return true;
    }
}

function reformatZIPCode (ZIPString)
{   if (ZIPString.length == 5) return ZIPString;
    else return (reformat (ZIPString, "", 5, "-", 4));
}

function checkZIPCode (theField, emptyOK)
{   if (checkZIPCode.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    { var normalizedZIP = stripCharsInBag(theField.value, ZIPCodeDelimiters)
      if (!isZIPCode(normalizedZIP, false)) 
         return warnInvalid (theField, iZIPCode);
      else 
      {  // if you don't want to insert a hyphen, comment next line out
         theField.value = reformatZIPCode(normalizedZIP)
         return true;
      }
    }
}

function reformatUSPhone (USPhone)
{   return (reformat (USPhone, "(", 3, ") ", 3, "-", 4))
}

function checkUSPhone (theField, emptyOK)
{   if (checkUSPhone.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {  var normalizedPhone = stripCharsInBag(theField.value, phoneNumberDelimiters)
       if (!isUSPhoneNumber(normalizedPhone, false)) 
          return warnInvalid (theField, iUSPhone);
       else 
       {  // if you don't want to reformat as (123) 456-789, comment next line out
          theField.value = reformatUSPhone(normalizedPhone)
          return true;
       }
    }
}

function checkCES (theField, emptyOK)
{   if (checkCES.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else if (!isCES(theField.value, false)) 
       return warnInvalid (theField, iCES);
    else return true;
}

function checkCSI (theField, emptyOK)
{   if (checkCSI.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else if (!isCSI(theField.value, false)) 
       return warnInvalid (theField, iCSI);
    else return true;
}

function checkCredits (theField, emptyOK)
{   if (checkCredits.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else if (!isCredits(theField.value, false)) 
       return warnInvalid (theField, iCredits);
    else return true;
}

function checkEmail (theField, emptyOK)
{   if (checkEmail.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else if (!isEmail(theField.value, false)) 
       return warnInvalid (theField, iEmail);
    else return true;
}

function checkWeb_Link (theField, emptyOK)
{   if (checkWeb_Link.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else if (!isWeb_Link(theField.value, false)) 
       return warnInvalid (theField, iWeb_Link);
    else return true;
}