var ro = false //rollover capability
function preload() {
	if (document.images) {
   	ro = true
     	imgs_on = new Array()
        	imgs_on['enter'] = new Image
			imgs_on['enter'].src = "/sweepstakes/gallery/enter_on.gif"

		imgs_off = new Array()
			imgs_off['enter'] = new Image
			imgs_off['enter'].src = "/sweepstakes/gallery/enter_off.gif"
	}
}

var isNS = false;
if (document.layers) isNS = true;


function imgOn(img) { if (ro) document.images[img].src = imgs_on[img].src }
function imgOff(img) { if (ro) document.images[img].src  = imgs_off[img].src }

function isPast(year,mon,day) {
	var now = new Date(); var then = new Date(year,mon,day);
	if (now.getTime() > then.getTime()) return true; //date given is in the past
	else return false;
}

function chkDate(act,year,mon,day,sorryPg) {
	// we have to adjust for Jan=0, etc.
	var endMonth = mon-1;

	// we will check against midnight of the next day
	var endDay = day+1;
	
	if (act==0) return true //ignore date check if active flag not set
	var URL = sorryPg;

//debug
if (act == 9) alert("end_date="+ endDay + " " + endMonth + " " + year + "\nisPast="+isPast(year,endMonth,endDay) + "SorryPg=" + URL)

	if (isPast(year,endMonth,endDay)) document.location.href = URL
}

function getwindowsize() {
    w_x=(isNS)? window.innerWidth : document.body.clientWidth;
    w_y=(isNS)? window.innerHeight : document.body.clientHeight;
    moveitem();
}

function handleResize() {
    location.reload()
    return false
}

if (isNS) {
    window.captureEvents(Event.RESIZE)
    window.onresize = handleResize
}

function resizeNS() {
    setTimeout('document.location.reload()',400);
}

// (isNS) ? window.onresize=resizeNS : window.onresize=getwindowsize ;

function moveitem() {
    if (isNS) {
        item.moveTo(0,(w_y-itemH));
        }else{
        item.pixelLeft=document.body.scrollLeft;
        item.pixelTop=w_y-itemH;
   }
}


// VARIABLE DECLARATIONS
var digits = "0123456789";
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var whitespace = " \t\n\r";
var decimalPointDelimiter = "."
var phoneNumberDelimiters = "()-. ";
var validUSPhoneChars = digits + phoneNumberDelimiters;
var validWorldPhoneChars = digits + phoneNumberDelimiters + "+";
var digitsInUSPhoneNumber = 10;
var ZIPCodeDelimiters = "-";
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 sUSLastName = "Last Name"
var sUSFirstName = "First Name"
var sWorldLastName = "Family Name"
var sWorldFirstName = "Given Name"
var sTitle = "Title"
var sCompanyName = "Company Name"
var sUSAddress = "Street Address"
var sWorldAddress = "Address"
var sCity = "City"
var sStateCode = "State Code"
var sWorldState = "State, Province, or Prefecture"
var sCountry = "Country"
var sZIPCode = "ZIP Code"
var sWorldPostalCode = "Postal Code"
var sPhone = "Phone Number"
var sFax = "Fax Number"
var sDateOfBirth = "Date of Birth"
var sExpirationDate = "Expiration Date"
var sEmail = "Email"
var sOtherInfo = "Other Information"

var iStateCode = "This field must be a valid two character U.S. state abbreviation (like CA for California). Please reenter it now."
var iZIPCode = "This field must be a 5 or 9 digit U.S. ZIP Code (like 94043). Please reenter it now."
var iUSPhone = "This field must be a 10 digit U.S. phone number (like 415 555 1212). Please reenter it now."
var iWorldPhone = "This field must be a valid international phone number. Please reenter it now."
var iEmail = "This must be a valid email address (like foo@bar.com). Please reenter it now."
var iDay = "The day must be a number between 1 and 31.  Please reenter it now."
var iMonth = "The month must be a number between 1 and 12.  Please reenter it now."
var iYear = "The year must be a 2 or 4 digit number.  Please reenter it now."
var iDatePrefix = "The Day, Month, and Year for "
var iDateSuffix = " do not form a valid date.  Please reenter them now."

var pEntryPrompt = "Please enter a "
var pStateCode = "2 character code (like CA)."
var pZIPCode = "5 or 9 digit U.S. ZIP Code (like 94043)."
var pUSPhone = "10 digit U.S. phone number (like 415 555 1212)."
var pWorldPhone = "international phone number."
var pEmail = "valid email address (like foo@bar.com)."
var pDay = "day number between 1 and 31."
var pMonth = "month number between 1 and 12."
var pYear = "2 or 4 digit year number."

var defaultEmptyOK = false

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

var daysInMonth = new Array();
daysInMonth[1] = 31;
daysInMonth[2] = 29;   // must programmatically check this
daysInMonth[3] = 31;
daysInMonth[4] = 30;
daysInMonth[5] = 31;
daysInMonth[6] = 30;
daysInMonth[7] = 31;
daysInMonth[8] = 31;
daysInMonth[9] = 30;
daysInMonth[10] = 31;
daysInMonth[11] = 30;
daysInMonth[12] = 31;

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) {
   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 hasCharsInBag (s, bag) {
    var returnString = false;

    for (var i = 0; i < s.length; i++) {   
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) {
		  		returnString = true;
		  		break;
		  }
    }

    return returnString;
}

function stripCharsInBag (s, bag) {
    var returnString = "";

    for (var 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 returnString = "";

    for (var i = 0; i < s.length; i++) {   
        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 ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) ) }

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

function isLetterOrDigit (c) { return (isLetter(c) || isDigit(c)) }

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 isSignedInteger (s) {
   if (isEmpty(s)) 
       if (isSignedInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedInteger.arguments[1] == true);
	 else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;
        if (isSignedInteger.arguments.length > 1) secondArg = isSignedInteger.arguments[1];
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") ) startPos = 1;    
        return (isInteger(s.substring(startPos, s.length), secondArg))
    }
}

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) {
	var i;
    var seenDecimalPoint = false;

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

    if (s == decimalPointDelimiter) return false;

    for (i = 0; i < s.length; i++) {   
        var c = s.charAt(i);
        if ((c == decimalPointDelimiter) && !seenDecimalPoint) seenDecimalPoint = true;
        else if (!isDigit(c)) return false;
    }

    return true;
}

function isSignedFloat (s) {
	if (isEmpty(s)) 
		if (isSignedFloat.arguments.length == 1) return defaultEmptyOK;
		else return (isSignedFloat.arguments[1] == true);
	else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;
        if (isSignedFloat.arguments.length > 1) secondArg = isSignedFloat.arguments[1];
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") ) startPos = 1;    
        return (isFloat(s.substring(startPos, s.length), secondArg))
    }
}


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

	for (i = 0; i < s.length; i++) {   
		var c = s.charAt(i);
		if (!isLetter(c)) return false;
	}
    return true;
}

function isAlphanumeric (s) {
   var i;

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

	for (i = 0; i < s.length; i++) {   
		var c = s.charAt(i);
		if (! (isLetter(c) || isDigit(c) ) ) return false;
	}
    return true;
}


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


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 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) != "@")) { i++ }

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

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

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

function isYear (s) {
	if (isEmpty(s)) 
	if (isYear.arguments.length == 1) return defaultEmptyOK;
//	else return (isYear.arguments[1] == true);
    if (!isNonnegativeInteger(s)) return false;
    return ((s.length == 2) || (s.length == 4));
}

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 isMonth (s) {
	if (isEmpty(s)) 
	if (isMonth.arguments.length == 1) return defaultEmptyOK;
//	else return (isMonth.arguments[1] == true);
    return isIntegerInRange (s, 1, 12);
}

function isDay (s) {
	if (isEmpty(s)) 
	if (isDay.arguments.length == 1) return defaultEmptyOK;
//	else return (isDay.arguments[1] == true);   
    return isIntegerInRange (s, 1, 31);
}

function daysInFebruary (year) { return (  ((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0) ) ) ? 29 : 28 ); }

function isDate (year, month, day) {   

    if (! (isYear(year, false) && isMonth(month, false) && isDay(day, false))) return false;

    var intYear = parseInt(year);
    var intMonth = parseInt(month);
    var intDay = parseInt(day);

    if (intDay > daysInMonth[intMonth]) return false;

    if ((intMonth == 2) && (intDay > daysInFebruary(intYear))) return false;

    return true;
}

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) {
    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 {  
			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 {  
			theField.value = reformatUSPhone(normalizedPhone)
			return true;
		}
	}
}

function checkInternationalPhone (theField, emptyOK) {
	if (checkInternationalPhone.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else {
		if (!isInternationalPhoneNumber(theField.value, false)) return warnInvalid (theField, iWorldPhone);
		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 reformatSSN (SSN) { return (reformat (SSN, "", 3, "-", 2, "-", 4)) }

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

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

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


function checkDate (yearField, monthField, dayField, labelString, OKtoOmitDay) {
    if (checkDate.arguments.length == 4) OKtoOmitDay = false;
    if (!isYear(yearField.value)) return warnInvalid (yearField, iYear);
    if (!isMonth(monthField.value)) return warnInvalid (monthField, iMonth);
    if ( (OKtoOmitDay == true) && isEmpty(dayField.value) ) return true;
    else { if (!isDay(dayField.value)) return warnInvalid (dayField, iDay);}
    if (isDate (yearField.value, monthField.value, dayField.value)) return true; 
    alert (iDatePrefix + labelString + iDateSuffix);
    return false;
}


function getRadioButtonValue (radio) {
	for (var i = 0; i < radio.length; i++) {
		if (radio[i].checked) { break }
    }
    return radio[i].value
}

function getParam(paramName) {
    var url,paramBegin,paramEnd,parseCharPos,valueBegin,paramValue
    url = window.location.search;
    paramBegin = url.indexOf(paramName)
    if (paramBegin == -1) return false
    paramEnd = paramBegin + paramName.length

    if (url.indexOf('&',paramEnd) == -1) {
        parseCharPos = url.length
    } else {
        parseCharPos = url.indexOf('&',paramEnd)
    }

    valueBegin = paramEnd + 1
    paramValue = url.substring(valueBegin, parseCharPos)

//    alert("paramName="+paramName+"\nparamValue=" + paramValue)

    for (i = 0; i < paramValue.length; i++) {
    paramValue = paramValue.replace("+", " ");
    paramValue = paramValue.replace("%26", "&");
    paramValue = paramValue.replace("%27", "'");
    paramValue = paramValue.replace("%28", "(");
    paramValue = paramValue.replace("%29", ")");
    }

    return paramValue
}

/*
    var qryStr = window.location.search;
    var ltr = qryStr.substring((qryStr.lastIndexOf("="))+1,qryStr.length);
    var strAns = getResponse(q,ltr);
*/