// Version

// 1.0	  Some of these functions were shamelessly swiped from a javascript form validation

//		  example lifted from the Netscape website and from www.internet.com.

//		  Almost all have been altered, some a lot, some a little				kgc 3/3/00

// 1.1	  Change date stuff for suspend/resume (2 date selects)					kgc 3/8/00

// 1.2    change daysofweek from select to text input								3/13/00

// 1.2.1  rewrite page instead of separate error window - cancel this!								3/20/00

// 1.2.2  05/31/00 checkEffectiveDate, put checkdate.setMonth after checkdate.setDate, was

//        causing 30 day months to be one month ahead.  hope this fixes it.

//	      do the same in checkSusRes for resdate and susdate  kgc

// 3.0	  07/17/00 Add PO Box and separate out floor no. dbw	

//

// 3.5    08/15/00 Added checkSchool function and changed subtype edits to allow

//                 for cents in the confirmation window.  vgw

// 3.5.1  08/15/00 Added checkProf function. dbw

// 4.0    08/30/00 Added checkIssues function and edit for discipline, term in issues. lrj

// 4.1    12/07/00 Modify edit processing to allow for "+" in e-mail address. lrj

// 4.2    01/10/01 Modify checkIssues for classroom indiviuals. lrj

// 4.3    04/12/01 Fixed date problem - when entered the 31st day of the month the day was being 

//                 converted to the 1st. kgc & lrj.  

// Several of these functions take an optional parameter eok (for "emptyOK")

// which determines whether the empty string will return true or false.

// Default behavior is controlled by global variable defaultEmptyOK.

// VARIABLE DECLARATIONS

var PopWin = new infoWin("PopWin");

var windowCtr = 0;

var errorMessageList = new Array();

var confirmList = new Array();

var NotRequired = true;

var Required = false;

var firstError;

var itsaGift = false;

var defaultEmptyOK = false;

var daysArray = new Array("","Sunday","Monday","Tuesday","Wednesday","Thursday",

						"Friday","Saturday");

var monthsArray = new Array("January","February","March","April","May","June",

						"July","August","September","October","November","December");

var numbersArray = new Array("zero","one","two","three","four","five");

var digits = "0123456789";

var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"

var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

// whitespace characters

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

var invalidEmailChars = ",></$#!%^&*():;\"\\?= ";

var digitsInZIPCode1 = 5;

// non-digit characters which are allowed in ZIP Codes

var ZIPCodeDelimiters = "-";

// Barron's and WSJ have 12 digit account numbers

// no non-digit chars are allowed.   kgc

var digitsInAccountNum = 12;

var front = "<tr><td align='left' valign='top' width='10'><font face='verdana,arial,helvetica' size='2'>&#149;&nbsp;</td><td align='left' valign='top'><font face='verdana,arial,helvetica' size='2'>";

var front2 = "<tr><td align='left' valign='top' width='150'><font face='verdana,arial,helvetica' size='2'>";

var back = "</td></tr>\n";

var iSubtype = front + 'Select subscription term.' + back;

var iOnCampus = front + 'Select On- or Off-Campus for Delivery Address.' + back;

var iZIPCode = ' Zip Code must be a 5 digit US ZIP Code.' + back;

var iAccountNum = front + 'The Account Number you\'ve entered is invalid. Make sure you are typing all 12 digits from your label without spaces.' + back;

var iEmailAddress = front + 'E-mail Address is not valid.   Example: alpha@beta.com' + back;

var iLast_Co = front + 'Last Name or Company Name must be completed.' + back;

var iLastName = front + 'Last Name must be entered.' + back;

var iPhone = ' Phone Number you entered is not valid. ' + back;

var iStreetPOBlank = front + 'Street name or PO Box number must be entered.' + back;

var iStreetNameBlank = front + 'Street number requires street name to be entered.' + back;

var iStreetPONotBlank = front + 'Street name and PO Box number cannot both be entered.' + back;

var iAptSteFloor = front + 'Apartment, Suite, or Floor Number must be selected.' + back;

var iSelect = ' must be selected.' + back;

var iGenericString = ' must be entered.' + back;

var iCreditCardNo = front + 'Credit Card Number is not valid.' + back;

var iCreditCardExpire = front + 'Credit Card Expiration Date is not valid.' + back;

var iBillOpts = front + 'Credit Card or Bill Me must be selected.' + back;

var iWeekEnd = ' Date can be Monday through Friday only.' + back;

var iBusdays = ' Date is less than '

var iBusdays2 = ' business day(s) from today.' + back;

var iGreater = ' Date must be today or later.' + back;

var iInvalidDate = ' Date is invalid.' + back;

var iSelectADate = ' Date must be selected.' + back;

var iSameDate = front + 'Suspend Date and Resume Date cannot be the same.' + back;

var iSelectSusRes = front + 'Suspend and/or Resume Date must be selected.' + back;

var iResdateGreater = front + 'Resume Date must be at least one business day greater than Suspend Date.' + back;

var iSchool = ' Please select a valid school name or "Other".' + back;

var iSchoolOther = ' Please enter your school name in the <b>Other</b> school name box.' + back;

var iProf = ' Please select a valid professor or "Other".' + back;

var iProfOther = ' Please enter your professor name in the <b>Other</b> professor name box.' + back;

var pEntryPrompt = "Please enter ";

var pZIPCode = "5 digit ZIP Code (like 01020).";

var pAccountNum = "12 digit account number.";  // kgc

var pFirstName = "First Name.";

var pLastName = "Last Name.";

var pCompanyName = "Company Name.";

var pStreetNum = "Street Number.";

var pStreetName = "Street Name.";

var pPOBox = "PO Box.";

var pCity = "City.";

var pState = "State.";

var pApt = "Apartment, Suite or Floor.";

var pFloorNo = "Floor Number.";

var pBillorCC = "Bill Me or Credit.";

var pEmailAddress = "E-mail Address.";

var pPhone = "7 digit Phone Number.";

var pAreaCode = "3 digit Area Code.";

var pHomeAreaCode = "3 digit Area Code for your Home Phone Number.";

var pHomePhone = "7 digit Home Phone Number.";

var pWorkAreaCode = "3 digit Area Code for your Business Phone Number.";

var pWorkPhone = "7 digit Business Phone Number.";

var pCreditCardNo = "Credit Card Number (no spaces please).";

var pCreditCardExp = "Credit Card Expiration Date.";

var pSubTerm = "Subscription Term.";

var pGiftCard = "to send a Gift Card.";

var pItsaGift = "if this is a Gift.";

var pStartDate = "Delivery start date.";

var pSuspendDate = "Delivery Suspend date.";

var pResumeDate = "Delivery Resume date.";

var pEffectiveDate = "Effective date.";

// Check whether string s is empty.

function isEmpty(s)

{   return ((s == null) || (s.length == 0));

}

// Returns true if string s is empty or

// whitespace characters only.

function isStringWhitespace (s)

{   var i;

    if (isEmpty(s)) return true;

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

    {

        // Check that current character isn't whitespace.

        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;

    }

    // All characters are whitespace.

    return true;

}

// Removes all characters which appear in string bag from string s.

function stripCharsInBag (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;

}

// Returns true if character c is a digit

// (0 .. 9).

function isDigit (c)

{   return ((c >= "0") && (c <= "9"))

}

// isInteger (STRING s [, BOOLEAN emptyOK])

// Returns true if all characters in string s are numbers.

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 infoWin(name) {

	this.name = name;

	this.title = "";

	this.header = "Please try again."

	this.header2 = "The following required fields were not entered"

	this.header3 = "or were entered incorrectly:"

	this.windowHandle = null;

	this.width = 500;

	this.height = 300;

	this.bgcolor = "#ffffee";

	return this;

}

function show(which)

{	

	var winheight;

	var winwidth;

	var to_page;

	

	this.close();

	if(which == "Error")  {

		to_page = "<HTML>\n" + "<head>\n<title>" + this.title + " Errors" + "</title>\n</head>\n<BODY BGCOLOR='" +

			this.bgcolor + "' onLoad='window.focus();'><div align='center'><center>\n" +

			"<table width='475' border='0' cellspacing='3' cellpadding='3'>\n" +

			"<tr><td align='left' valign='top'><font FACE='verdana,arial,helvetica' color='red' size='4'>\n" +

			"<b>" + this.header + "</b></td></tr>\n" +

			"<tr><td rowspan='2' align='left' valign='top'><font FACE='verdana,arial,helvetica' color='red' size='2'>\n" +

			this.header2 + " " +

			this.header3 + "</td></tr></table>\n" +

			"<table width='475' border='0' cellspacing='3' cellpadding='3'>\n" +

			"<tr><td align='left' valign='top'><font FACE='verdana,arial,helvetica' size='3'></td></tr>\n" +

			errorMessageList.join("") +

			"</table>\n" +

			"<table width='475' border='0' cellspacing='3' cellpadding='3'>\n" +

			"<tr><td align='left'><br><form name='form2'>\n" +

			"<input type='button' value='Back to Form' \n" +

			" onClick='top.opener.focus(); if(top.opener.firstError) top.opener.firstError.focus();'>\n" +

			"</form></td></tr>\n</table>" +

			"</div></center>\n</BODY>\n</HTML>\n";

		winheight = (this.height  + (errorMessageList.length * 30))

		if (winheight > 450) winheight = 450;

		winwidth = this.width;

	}

	else  {

		to_page = "<HTML>\n" + "<head>\n<title>" + this.title + " Confirmation" + "</title>\n</head>\n" +

			"<BODY BGCOLOR='" + this.bgcolor + "' onLoad='window.focus();'>\n" +

			"<table width='500' border='0' cellspacing='1' cellpadding='1'>\n" +

			"<tr><td colspan='2' align='left' valign='top'><font FACE='verdana,arial,helvetica' color='black' size='3'>\n" +

			"<b>" + this.title + " Confirmation" + "</b></td></tr>\n" +

			"<tr><td colspan='2'></td></tr><tr><td colspan='2' align='left' valign='bottom'><font FACE='verdana,arial,helvetica' color='black' size='2'>\n" +

			"<b>Please confirm the following information:" + "</b></td></tr>\n" +

			//"</table>\n" +

			"<tr><td align='left' valign='bottom'><font FACE='verdana,arial,helvetica' size='1'>&nbsp;</td></tr></table>\n" +

			"<table width='500'" + " border='0' cellspacing='1' cellpadding='1'>" +

			confirmList.join("") +

			//"<table width='500'" + " border='0' cellspacing='1' cellpadding='1'>\n" +

			"<tr><td align='left' valign='top' width='150'><font face='verdana,arial,helvetica' size='2'><br><form name='form2'>\n" +

			"<input type='button' value='Submit Request' onClick='top.close(self);top.opener.focus();top.opener.document.theform.submit();'></td>\n" +

			"<td>&nbsp;&nbsp;</td><td align='left' valign='top'><br><font face='verdana,arial,helvetica' size='2'>" +

			"<input type='button' value='Edit - Return to Form' onClick='top.opener.focus();top.close(self);'>\n" +

			"</td></tr></form></table></BODY></HTML>\n";

		winheight = this.height + (confirmList.length * 30);	

		if (winheight > 450) winheight = 450;

		winwidth = this.width;	

	}

	errorMessageList.length = 0;

	confirmList.length = 0;

	this.windowHandle = window.open("",	"subwindow" + windowCtr++,

										"toolbar=no," +

										"location=no," +

										"directories=no," +

										"status=no," +

										"menubar=yes," +

										"scrollbars=yes," +

										"resizable=yes," +

										"width=" + winwidth + "," +

										"height=" + winheight);

	

	this.windowHandle.myopener = self;

	this.windowHandle.document.open();	

	this.windowHandle.document.write(to_page);

	this.windowHandle.document.close();

}

function TrapError()

{

	return true;

}

function DontTrapError()

{

	return false;

}

function close()  {

	top.onerror = TrapError;

	if (this.windowHandle)

		if(!this.windowHandle.closed)

			this.windowHandle.close();

		

	this.windowHandle = null;

                	

	top.onerror = DontTrapError;

}

new infoWin();

infoWin.prototype.show = show;

infoWin.prototype.close = close;

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)

}

// Display prompt string s in status bar.

function prompt (s)

{   window.status = s

}

// Display data entry prompt string s in status bar.

function promptEntry (s)

{   window.status = pEntryPrompt + s

}

function AddToConfirm(name, value)

{

	confirmList[confirmList.length] = front2 + name + ":" + "</td><td>&nbsp;&nbsp;</td><td align='left' valign='top'><font face='verdana,arial,helvetica' size='2'>" + value + back;

	return;

}

function checkCheckbox(theField, name)

{

	if(theField.checked)  {

		AddToConfirm(name, "Yes");

		return true;

	}

	else {

		AddToConfirm(name, "No");

		return false;

	}

}	

// Check that string theField.value is not all whitespace.

function checkString (theField, name, emptyOK)

{

    if (checkString.arguments.length == 2) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

    if (isStringWhitespace(theField.value)) {

		errorMessageList[errorMessageList.length] = front + name + iGenericString

		if(!firstError)

			firstError = theField;	

		return false;

	}	

	else {

		AddToConfirm(name, theField.value);

		return true;

	}

}

function checkSelect (theField, name, validStart, emptyOK)

{

    if (checkSelect.arguments.length == 3) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (theField.selectedIndex < validStart)) return true;

    if (theField.selectedIndex < validStart) {

		errorMessageList[errorMessageList.length] = front + name + iSelect

		if(!firstError)

			firstError = theField;	

		return false;

	}	

	else if (theField.name == "Major" || theField.name == "Course" || theField.name == "Discipline") {

		AddToConfirm(name, theField.options[theField.selectedIndex].text);

		return true;

	}

	else {

		AddToConfirm(name, theField.options[theField.selectedIndex].value);

		return true;

	}

}

function checkSchool (theField, theOther, name, validStart, emptyOK)

{

    if (checkSchool.arguments.length == 4) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (theField.selectedIndex < validStart)) return true;

    if (theField.selectedIndex < validStart) 

    {

		errorMessageList[errorMessageList.length] = front + iSchool

		if(!firstError)

			firstError = theField;	

		return false;

	}	

	else if (theField.options[theField.selectedIndex].text == "Other")

	{

		 if (! theOther.value)

		 {

			errorMessageList[errorMessageList.length] = front + iSchoolOther

			if(!firstError)

				firstError = theField;	

			return false;

		 }

		 else 

		 {

			AddToConfirm(name, theOther.value);

			return true;

		 }

	}

	else 

	{

		AddToConfirm(name, theField.options[theField.selectedIndex].text);

		return true;

	}

}

function checkProf (theField, theOther, name, validStart, emptyOK)

{

    if (checkProf.arguments.length == 4) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (theField.selectedIndex < validStart)) return true;

    if (theField.selectedIndex < validStart) 

    {

		errorMessageList[errorMessageList.length] = front + iProf

		if(!firstError)

			firstError = theField;	

		return false;

	}	

	else if (theField.options[theField.selectedIndex].text == "Other")

	{

		 if (! theOther.value)

		 {

			errorMessageList[errorMessageList.length] = front + iProfOther

			if(!firstError)

				firstError = theField;	

			return false;

		 }

		 else 

		 {

			AddToConfirm(name, theOther.value);

			return true;

		 }

	}

	else 

	{

		AddToConfirm(name, theField.options[theField.selectedIndex].text);

		return true;

	}

}

function checkOptions(theField, invalidMsg, emptyOK)

{	var i;

	if (checkOptions.arguments.length == 2) emptyOK = defaultEmptyOK;

	for(i = 0; i < theField.length; i++)

	{

	   if(theField[i].checked) {

		if(theField[i].name == "SubType") {

		   var colon = theField[i].value.indexOf(':');

		   var amount = theField[i].value.substring(0, colon);

		   var units = "weeks";

		   if(parseInt(amount) > 52 ) {

			units = "years";

			amount /= 52;

		   }	

		   var dollars = theField[i].value.substring(colon+1);

		   var dolcents = dollars.split(':');

		   if (! dolcents[1]) dolcents[1] = "00";

		   AddToConfirm("Subscription Term",  amount + " " + units +

			" at $" + dolcents[0] + "." + dolcents[1] );

			//theField[i].value.substring(colon+1)	vgw

		}

		else if(theField[i].name == "OnCampus")

		{	AddToConfirm("On Campus", theField[i].value); }

		else

		   if(theField[i].name == "BillOpts")

			AddToConfirm("Bill Option", theField[i].value);

		return i;

	   }

	}

    	if(!emptyOK)  {

		errorMessageList[errorMessageList.length] = invalidMsg;

		if(!firstError)

			firstError = theField[0];

	}

	return i;	

}

// added this to handle a single subtype as a checkbox - 10/26/00 vgw

function checkSingleSubType(theField, invalidMsg, emptyOK)

{	

   if (checkSingleSubType.arguments.length == 2) emptyOK = defaultEmptyOK;

   if(theField.checked) 

   {

	 var colon = theField.value.indexOf(':');

	 var amount = theField.value.substring(0, colon);

	 var units = "weeks";

	 if(parseInt(amount) > 52 ) {

	 	units = "years";

		amount /= 52;

     }	

     var dollars = theField.value.substring(colon+1);

     var dolcents = dollars.split(':');

     if (! dolcents[1]) dolcents[1] = "00";

     AddToConfirm("Subscription Term",  amount + " " + units +

			" at $" + dolcents[0] + "." + dolcents[1] );

   }

   else

   {

	  if(!emptyOK)  

	  {

		errorMessageList[errorMessageList.length] = invalidMsg;

		if(!firstError) firstError = theField;

	  }

   }

}

function checkEffectiveDate(date_form, numBusdays, name, dayofweek, daySelect, monthSelect, yearSelect, emptyOK)

{	

	var today = new Date();

	var yrsel;

	var dayctr = 0;

	var busdayctr = 0;

	var weekDay;

	var errmsgnum = errorMessageList.length;

	if (checkEffectiveDate.arguments.length == 7) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && date_form.elements[monthSelect].selectedIndex == 0 &&

	   date_form.elements[yearSelect].selectedIndex == 0 &&

	   date_form.elements[daySelect].selectedIndex == 0)

			return true;

	

	if(date_form.elements[monthSelect].selectedIndex == 0 &&

	   date_form.elements[yearSelect].selectedIndex == 0 &&

	   date_form.elements[daySelect].selectedIndex == 0)  {

	      errorMessageList[errorMessageList.length] = front + name + iSelectADate;

		  if(!firstError)

			firstError = date_form.elements[monthSelect];

		  return false;

	}

	if(date_form.elements[monthSelect].selectedIndex == 0 ||

	   date_form.elements[yearSelect].selectedIndex == 0 ||

	   date_form.elements[daySelect].selectedIndex == 0)  {

	      errorMessageList[errorMessageList.length] = front + name + iInvalidDate;

		  if(!firstError)

			firstError = date_form.elements[monthSelect];

		  return false;

	}

	  

	// create the checkDate date object by giving it the date selected by the customer.

	// the causes the time to be zero. kgc and lrj 4/12/01 	

    //kgc 5/31/00 moved setDate before setMonth, was causing 30 day mos to be 1 month ahead..?????

     // var checkDate = new Date();

	 //   checkDate.setDate(date_form.elements[daySelect].selectedIndex);

     //   checkDate.setMonth(date_form.elements[monthSelect].selectedIndex - 1);

     //   checkDate.setYear(parseInt(date_form.elements[yearSelect].options[yrsel].text));

   

     yrsel = date_form.elements[yearSelect].selectedIndex;

     var checkDate = new Date(parseInt(date_form.elements[yearSelect].options[yrsel].text),

					 date_form.elements[monthSelect].selectedIndex - 1,

					 date_form.elements[daySelect].selectedIndex);



	    if(checkDate.getDay() == 0 || checkDate.getDay() == 6) 	{

		errorMessageList[errorMessageList.length] = front + name + iWeekEnd;

		if(!firstError)

			firstError = date_form.elements[monthSelect];

	}

	// make the time 0 to match the checkDate time above for the compare below.

	// arghhhh, the reason we changed how we assigned the date to the checkDate object 

	// was that it caused the resulting date to be incorrect.  and then that hosed the compare.

	// 4/12/01  kgc and lrj  



	today.setHours(0);

	today.setMinutes(0);

	today.setSeconds(0);

	var i = today.getDay();

	while(busdayctr < numBusdays)  {

		dayctr++;

		i++;

		if((i %= 7) != 0 && (i %= 7) != 6)

			busdayctr++;

	}

	// eliminate time from date before compare

	if((Math.floor(checkDate.getTime() / 3600000) - Math.floor(today.getTime() / 3600000)) < (24 * dayctr))  {

		if(numBusdays == 0)

			errorMessageList[errorMessageList.length] = front + name + iGreater;

		else

			errorMessageList[errorMessageList.length] = front + name + iBusdays + numbersArray[numBusdays] + iBusdays2;

		if(!firstError)

			firstError = date_form.elements[monthSelect];

	}

	if(errmsgnum == errorMessageList.length) {

		AddToConfirm(name + " Date", daysArray[checkDate.getDay()+1] + " " + monthsArray[checkDate.getMonth()] + " " + checkDate.getDate() + ", " + getFullYear(checkDate));

		return true;

	}

	else

		return false;

}

function checkSusRes(date_form,susDay,susMon,susYr,resDay,resMon,resYr)

{	var errmsg;

	var susTime;

	var resTime;

	var goodSus = false;

	var goodRes = false;

		//create the susDate and resDate date object by giving it the date selected by the customer.

		//the causes the time to be zero. kgc and lrj 4/12/01

		//var susDate = new Date();

	var susYrSel = date_form.elements[susYr].selectedIndex;

	var susDate = new Date(parseInt(date_form.elements[susYr].options[susYrSel].text),

		date_form.elements[susMon].selectedIndex - 1,

		date_form.elements[susDay].selectedIndex);

	        //kgc 5/31/00 moved setDate before setMonth, was causing 30 day mos to be 1 month ahead..?????

	//susDate.setDate(date_form.elements[susDay].selectedIndex);

	//susDate.setYear(parseInt(date_form.elements[susYr].options[susYrSel].text));	

	//susDate.setMonth(date_form.elements[susMon].selectedIndex - 1);

	var resYrSel = date_form.elements[resYr].selectedIndex;

	var resDate = new Date(parseInt(date_form.elements[resYr].options[resYrSel].text),

		date_form.elements[resMon].selectedIndex - 1,

		date_form.elements[resDay].selectedIndex);

	//var resDate = new Date();

        //kgc 5/31/00 moved setDate before setMonth, was causing 30 day mos to be 1 month ahead..?????

	//resDate.setDate(date_form.elements[resDay].selectedIndex);

	//resDate.setYear(parseInt(date_form.elements[resYr].options[resYrSel].text));

	//resDate.setMonth(date_form.elements[resMon].selectedIndex - 1);

        if (date_form.elements[susMon].selectedIndex != 0 &&

			date_form.elements[susYr].selectedIndex != 0 &&

			date_form.elements[susDay].selectedIndex != 0)

		goodSus = true;

	if (date_form.elements[resMon].selectedIndex != 0 &&

			date_form.elements[resYr].selectedIndex != 0 &&

			date_form.elements[resDay].selectedIndex != 0)

		goodRes = true;

	

	if (date_form.elements[susMon].selectedIndex == 0 &&

	   date_form.elements[susYr].selectedIndex == 0 &&

	   date_form.elements[susDay].selectedIndex == 0 &&

	   date_form.elements[resMon].selectedIndex == 0 &&

	   date_form.elements[resYr].selectedIndex == 0 &&

	   date_form.elements[resDay].selectedIndex == 0)

		   errmsg = iSelectSusRes;

	else

		if (goodSus && goodRes)  {

			resTime = Math.floor(resDate.getTime() / 3600000);

			susTime = Math.floor(susDate.getTime() / 3600000);

			if( susTime == resTime)

			   errmsg = iSameDate;

			else

			   if((resTime - susTime) < 24 )

			      errmsg = iResdateGreater;

		}		

	if(errmsg) {

		errorMessageList[errorMessageList.length] = errmsg;

		if(!firstError)

			firstError = date_form.elements[susMon];

	}

	return true;		

}		

function checkLast_Co (LastNameField, CompNameField, invalidMsg)

{

    if (isStringWhitespace(LastNameField.value) && isStringWhitespace(CompNameField.value) )	

    {

		// lastname and company name are empty, no good!

		errorMessageList[errorMessageList.length] = iLast_Co;

		if(!firstError)

			firstError = LastNameField;	

		return false;

    }	

    else {

		if(!isStringWhitespace(LastNameField.value))

			AddToConfirm("Last Name", LastNameField.value);

		if(!isStringWhitespace(CompNameField.value))

			AddToConfirm("Company Name", CompNameField.value);

		return true;

    }

}

function checkZIPCode (theField, name, emptyOK)

{   if (checkZIPCode.arguments.length == 2) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

    else

    { var normalizedZIP = stripCharsInBag(theField.value, ZIPCodeDelimiters)

      if (!isZIPCode(normalizedZIP, false)) {

	 		errorMessageList[errorMessageList.length] = front + name + iZIPCode;

	 		if(!firstError)

				firstError = theField;	

			return false;

      }

      else {

		if (name == "")

			AddToConfirm("Zip Code", theField.value);

		else	

			AddToConfirm(name + " Zip Code", theField.value);

		return true;

      }

   }

}

function validateAcctNo(AcctNo)

{

	var weight = new Array(4,3,2,9,8,7,6,5,4,3,2);	

	var result = 0;

	var i;

		

	for( i = 0; i < AcctNo.length - 1; i++)

		result += parseInt(AcctNo.charAt(i)) * weight[i];

		

	if(AcctNo.charAt(4) == "6") {

		// convert to string

		result = result + "";

		result = result.substring(result.length - 2);

	}	

	result %= 11;

	if(result == 0)  {

		if(parseInt(AcctNo.charAt(11)) != 1)  {

			return false;

		}

	}

	else if(result == 1)  {

		if(parseInt(AcctNo.charAt(11)) != 0)  {

			return false;

		}

	}

	else   {

		result = 11 - result;

		if(result != parseInt(AcctNo.charAt(11)))  {

			return false;

		}

	}

	return true;		

}

	

function checkAccountNum (theField, emptyOK)

{

    if (checkAccountNum.arguments.length == 1) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

    else

      if ((theField.value.length == digitsInAccountNum) && (isInteger (theField.value, false)) &&

				(validateAcctNo(theField.value)))  {

		AddToConfirm("Account Number", theField.value);		

		return true;

	  }

      else	{

		errorMessageList[errorMessageList.length] = iAccountNum;

		if(!firstError)

			firstError = theField;

		return false;

	  }	

}

function checkPOBox(StreetNoValue, StreetNameValue, POBoxValue)

{

var POBoxCombo;

if ((StreetNameValue.value.length == 0) &&

    (POBoxValue.value.length == 0))

       {

        errorMessageList[errorMessageList.length] = iStreetPOBlank;

        if (!firstError)

           {

            firstError = StreetNoValue;

           }

            return false;

       }

else {

if ((StreetNoValue.value.length > 0) &&

    (StreetNameValue.value.length == 0))

       {

        errorMessageList[errorMessageList.length] = iStreetNameBlank;

        if (!firstError)

           {

            firstError = StreetNameValue;

           }

            return false;

       }

else {

if ((StreetNameValue.value.length > 0) &&

    (POBoxValue.value.length > 0))

       {

        errorMessageList[errorMessageList.length] = iStreetPONotBlank;

        if (!firstError)

           {

            firstError = StreetNoValue;

           }

            return false;

       }

   else {

        if (!isStringWhitespace(POBoxValue.value)) {

           POBoxCombo = 'PO Box ' + POBoxValue.value;

           AddToConfirm("Address Line 1", POBoxCombo); }

        if (!isStringWhitespace(StreetNameValue.value))

           AddToConfirm("Address Line 1", StreetNoValue.value + ' ' + StreetNameValue.value);

        return true;

        }

}

}

}

function checkAptNum(FloorNoPresent, FloorNoValue, name)

{

var floorNumberCombo;

if (FloorNoPresent.selectedIndex == 0)

   if (!(FloorNoValue.value.length == 0))

       {

        errorMessageList[errorMessageList.length] = iAptSteFloor;

        if (!firstError)

           {

            firstError = FloorNoPresent;

           }

            return false;

       }

   else

        return true;

if (isStringWhitespace(FloorNoValue.value))

   {

     errorMessageList[errorMessageList.length] = front + name + iGenericString;

     if(!firstError)

        firstError = FloorNoValue;

        return false;

   } else

   {

        if (FloorNoPresent.value == "Other") {

        	floorNumberCombo = FloorNoValue.value; }           

        else {

        	floorNumberCombo = FloorNoPresent.options[FloorNoPresent.selectedIndex].value + " " + FloorNoValue.value; }

        AddToConfirm("Address Line 2", floorNumberCombo);

        return true;

   }  

}

function isCreditCard(ccnumber)

{

   var i = 0;

   var j = 2;

   var sum = 0;	

   var product;	

   if (isEmpty(ccnumber))

   if (isCreditCard.arguments.length == 1) return defaultEmptyOK;

       else return (isCreditCard.arguments[1] == true);	

   if(isStringWhitespace(ccnumber))

	   return false;

	

   if ( !(((ccnumber.length == 16 || ccnumber.length == 13) &&

            ccnumber.charAt(0) == '4') ||   			// visa

	   (ccnumber.length == 16 &&   				// discover and mastercard

	   ((ccnumber.indexOf("6011") == 0) || ccnumber.charAt(0) == '5')) ||

	   (ccnumber.length == 15 && ccnumber.indexOf("37") == 0 ) ||  //  Amex

	   (ccnumber.length == 14 &&  				// diners

	   (ccnumber.indexOf("30") == 0 || ccnumber.indexOf("36") == 0 ||

	   ccnumber.indexOf("38") == 0))))

		return false;		

  // start with 1 for Amex and 13 digit Visa

  if (ccnumber.length == 15 || ccnumber.length == 13)

	  j = 1;

  	

  while (i <= ccnumber.length - 2) {

	product = parseInt(ccnumber.charAt(i)) * j

	if (product >= 10)

	   sum += ((product % 10) + Math.floor(product / 10)); 	

	else

	   sum += product;

		

	if (j == 1)

		j++;

	else

		j--;

	i++;

  }		

  var ckdigit;

  ckdigit = sum % 10;

  if (ckdigit != 0)

	 ckdigit = 10 - ckdigit;

  return (ckdigit == parseInt(ccnumber.charAt(ccnumber.length - 1)));	

}

function checkCreditCard(theField, emptyOK)

{

	if (checkCreditCard.arguments.length == 1) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

	if(!isCreditCard(theField.value))

	{

	 	errorMessageList[errorMessageList.length] = iCreditCardNo;

	 	if(!firstError)

			firstError = theField;	

		return false;

	}

	else  {

		AddToConfirm("Credit Card Number", theField.value);

		return true;

	}

}

function getFullYear(theDate)

{	// doing this to combat older browser year handling

	var year = theDate.getYear();

	if(year < 1000)

		year += 1900;

	return year;

}

function isExpireDate(expDate, emptyOK)

{

	var today = new Date();

	var curMonth;

	var curYear;

	var ccMonth;

	var ccYear;

	

	if (isEmpty(expDate))

		if (isExpireDate.arguments.length == 1) return defaultEmptyOK;

		else return (isExpireDate.arguments[1] == true);

	if (isStringWhitespace(expDate) || !(isDigit(expDate)) || expDate.length != 4)

		return false;

	

	curMonth = today.getMonth() + 1;

	curYear = ((getFullYear(today) + "").substring(2)) - 0;

	ccMonth = expDate.substring(0,2) - 0;

	ccYear = expDate.substring(2) - 0;

	return !(((ccYear == curYear) && (ccMonth < curMonth)) ||

		ccMonth < 1 || ccMonth > 12 || ccYear > curYear + 10);

}

function checkExpireDate(theField, emptyOK)

{

	if (checkExpireDate.arguments.length == 1) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

    else if (!isExpireDate(theField.value, false))

	{

	 	errorMessageList[errorMessageList.length] = iCreditCardExpire;

	 	if(!firstError)

			firstError = theField;	

		return false;

	}

	else  {

		AddToConfirm("Card Expiration Date", monthsArray[parseInt(theField.value.substring(0,2), 10) - 1] +

			" " + (parseInt(theField.value.substring(2)) + 2000));

		return true;

	}

}

function isCCExpDate(ccMonth, ccYear)

{

	var today = new Date();

	var curMonth;

	var curYear;

		

	curMonth = today.getMonth() + 1;

	curYear = getFullYear(today) - 0;

	return !(((ccYear == curYear) && (ccMonth < curMonth)) ||

		ccMonth < 1 || ccMonth > 12 || ccYear > curYear + 10);

}

function checkCCExpDate(monSelect, yearSelect, emptyOK)

{

	if (checkCCExpDate.arguments.length == 2) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (monSelect.selectedIndex == 0 &&

		yearSelect.selectedIndex == 0)) return true;

	var month = monSelect.selectedIndex;

	var year = parseInt(yearSelect.options[yearSelect.selectedIndex].text);

	if ((monSelect.selectedIndex == 0 || yearSelect.selectedIndex == 0) ||

		(!isCCExpDate(month, year)))

	{

	 	errorMessageList[errorMessageList.length] = iCreditCardExpire;

	 	if(!firstError)

			firstError = monSelect;	

		return false;

	}

	else  {

		AddToConfirm("Card Expiration Date", monthsArray[month-1] + " " + year);

		return true;

	}

}

function isEmail(emailAddr, emptyOK)

{

	var i;

	var dotCtr = 0;

	var atCtr = 0;

	var dotAfterAt = false;

	

	if (isEmpty(emailAddr))

       if (isEmail.arguments.length == 1) return defaultEmptyOK;

       else return (isEmail.arguments[1] == true);

    if (isStringWhitespace(emailAddr) || emailAddr.charAt(0) == "." ||

			emailAddr.charAt(emailAddr.length-1) == "." || emailAddr.charAt(0) == "@" ||

			emailAddr.charAt(emailAddr.length-1) == "@")

		return false;

    for(i = 0; i < emailAddr.length; i++)

    {

		if(invalidEmailChars.indexOf(emailAddr.charAt(i)) > -1)

			return false;

		if(emailAddr.charAt(i) == ".") {

			dotCtr += 1;

			if (atCtr > 0) dotAfterAt = true;

		}

		if(emailAddr.charAt(i) == "@")

			atCtr += 1;

	}

	return !( dotCtr == 0 || atCtr == 0 || !dotAfterAt ||

			emailAddr.indexOf("..") > -1 || emailAddr.indexOf(".@") > -1 ||

			emailAddr.indexOf("@.") > -1 ||

			emailAddr.indexOf("@@") > -1 );

}

	

function checkEmail (theField, emptyOK)

{

	if (checkEmail.arguments.length == 1) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && (isStringWhitespace(theField.value))) return true;

    else if (!isEmail(theField.value, false))

    {

	 	errorMessageList[errorMessageList.length] = iEmailAddress;

		if(!firstError)

			firstError = theField;	

		return false;

	}

    else {

		AddToConfirm("E-mail Address", theField.value);

		return true;

	}

}

function checkPhoneNum(areaCode, phoneNum, phoneType, emptyOK)

{	

	var phone;

	var area;

	if (checkPhoneNum.arguments.length == 3) emptyOK = defaultEmptyOK;

    if ((emptyOK == true) && isStringWhitespace(areaCode.value) && isStringWhitespace(phoneNum.value)) return true;

    else

    {

		area = stripCharsInBag(areaCode.value, whitespace);

		phone = stripCharsInBag(phoneNum.value, whitespace + '-');

		if(area.length != 3 || phone.length != 7 || !isInteger(area) ||

				!isInteger(phone) )

		{

			errorMessageList[errorMessageList.length] = front + phoneType + iPhone;

			if(!firstError)

				firstError = areaCode;	

			return false;

		}

		else {

			var thephone = phone.substring(0,3) + "-" + phone.substring(3);

			if(phoneType == "")

				AddToConfirm("Phone Number", "(" + area + ") " + thephone);

			else

				AddToConfirm(phoneType + " Phone", "(" + area + ") " + thephone);

			return true;

		}

    }	

}

var weekday_showing = true;

function changeDays(numb, date_form, dayofweek, daySelect, monthSelect, yearSelect) {

	var month;

	var sel;

	var year;

	var day;

	var numDays;	

	month = date_form.elements[monthSelect].selectedIndex - 1;

	sel = date_form.elements[yearSelect].selectedIndex;

	year = parseInt(date_form.elements[yearSelect].options[sel].text);

	

	if (numb != 1) {

		numDays = numDaysIn(month, year);

		date_form.elements[daySelect].options.length = numDays + 1;

		for (i = 27; i < numDays + 1; i++) {

			date_form.elements[daySelect].options[i].text = i;

		}

	}

	day = date_form.elements[daySelect].selectedIndex;

	if(date_form.elements[monthSelect].selectedIndex == 0 ||

			date_form.elements[yearSelect].selectedIndex == 0 ||

			day == 0)

		date_form.elements[dayofweek].value = "";

	else

		date_form.elements[dayofweek].value = daysArray[getWeekDay(month,day,year) + 1];

		//date_form.elements[dayofweek].selectedIndex = getWeekDay(month,day,year) + 1;

}

function numDaysIn(month, year) {

	if (month==3 || month==5 || month==8 || month==10) return 30;

	else if ((month==1) && leapYear(year)) return 29;

	else if (month==1) return 28;

	else return 31;

}

function leapYear(year) {

	if (((year % 4 == 0) && year % 100 != 0) || year % 400 == 0)

		return true;

	else

		return false;

}

function getWeekDay(month, day, year) {

	var first_day;

	first_day = firstDayOfYear(year);

	for (num=0; num < month; num++) {

		first_day += numDaysIn(num, year);

	}

	first_day += day - 1;

	return first_day % 7;

}

function firstDayOfYear(year) {

	var diff;

	diff = year - 401;

	return parseInt((1 + diff + (diff / 4) - (diff / 100) + (diff / 400)) % 7);

}

function checkIssues(theField, invalidMsg, emptyOK)

{	var i;

	if (checkIssues.arguments.length == 2) emptyOK = defaultEmptyOK;

	for(i = 0; i < theField.length; i++)

	{

	   if(theField[i].checked) {

		if(theField[i].name == "SubType") {

		   var colon = theField[i].value.indexOf(':');

		   var term = theField[i].value.charAt(0);

         	   var units="";

		 

		   if (term == 'Y') units = "Full academic year"; 	// classroom & sponsor 

           if (term == 'F') units = "Fall semester";		// classroom & sponsor

		   if (term == 'S') units = "Spring semester";		// classroom & sponsor

		   if (term == 'A') units = "Full academic year";	// indiviual classroom

		  

		   var dollars = theField[i].value.substring(colon+1);

		   var dolcents = dollars.split(':');

		   if (! dolcents[1]) dolcents[1] = "00";

		   

		   if (term == 'A') {

			 AddToConfirm("Subscription Term",  units +

			" at $" + dolcents[0] + "." + dolcents[1] + " per copy" );

		   }

		   else

		   {

		  	 AddToConfirm("Subscription Term",  units +

			" at $" + dolcents[0] + "." + dolcents[1] );

			//theField[i].value.substring(colon+1)	vgw

	 		}

	 }	

  

       return i;

	}  

 }

  

   	if(!emptyOK)  {

		errorMessageList[errorMessageList.length] = invalidMsg;

		if(!firstError)

			firstError = theField[0];

	}

	return i;	

}