function changeInnerBuy(innerID,value,isbn) {
//alert(value);
       if (value=="") {value=1}; // set value at 1
       var thisID = eval(innerID);
       var thistext =  '<img src="templates/domSecondaryStage2/$file/MS_icon_added.gif" align="absmiddle">&nbsp;' + value + '<br><a onClick="removefromCart(\'' + isbn + '\')"><img src="templates/domSecondaryStage2/$file/MS_icon_remove.gif" align="absmiddle"></a>';
       thisID.innerHTML = thistext;
}

function changeInnerInspect(innerID,isbn) {
       var thisID = eval(innerID);
       var thistext =  '<img src="templates/domSecondaryStage2/$file/MS_icon_inspect_on.gif" align="absmiddle">&nbsp;1<br><a onClick="removefromCart(\'' + isbn + '\')"><img src="templates/domSecondaryStage2/$file/MS_icon_remove.gif" align="absmiddle"></a>';
       thisID.innerHTML = thistext;
}

function setReceipt() {
    var receiptTime = new Date();
    var receiptName = document.forms['SubmitOrder'].Lastname.value.substring(0,5).toUpperCase();
    var cookieReceipt = receiptName + receiptTime.valueOf();
    document.forms['SubmitOrder'].OrderID.value = cookieReceipt;
    var cookieEx = new Date();
    cookieEx.setTime(cookieEx.getTime() + (1 * 60 * 60 * 1000 ));
    setCookie('MacReceipt', cookieReceipt, cookieEx, '/');

}

function getRadioValue(thisElement)
  {
    var i;
    var listingType = document.forms['SubmitOrder'].elements[thisElement];
    var value = "";
    for (i=0; i < listingType.length; i++)
    {
      if (listingType[i].checked)
      {
        return listingType[i].value;
      }
    }
  }


// yes
function rememberDetails() {
  if (document.forms['SubmitOrder'].Remember.checked) {

    var which = document.forms['SubmitOrder'];
   
    detailsCookie = which.Firstname.value + ";"
    detailsCookie += which.Lastname.value + ";"
    detailsCookie += which.CustomField_2.value + ";"
    detailsCookie += which.Organisation.value + ";"
    detailsCookie += which.MoreInfo.checked + ";"
    detailsCookie += which.PostalAddress.value + ";"
    detailsCookie += which.PostalCity.value + ";"
    detailsCookie += which.PostalState.value + ";"
    detailsCookie += which.PostalCode.value + ";"
    detailsCookie += which.PhoneNumber.value + ";"
    detailsCookie += which.CustomField_3.value + ";"
    detailsCookie += which.EmailAddress.value + ";"
    detailsCookie += which.ContactType.value + ";"
    var cookieExpires = new Date();
    cookieExpires.setTime(cookieExpires.getTime() + (10 * 365 * 24 * 1 * 60 * 60 * 1000 ));
    setCookie('MacmillanDetails', detailsCookie, cookieExpires, '/');
  }
  else { // delete cookie
    delCookie('MacmillanDetails','/')
  }
}

function num2money(n_value) {

	// validate input
	if (isNaN(Number(n_value)))
		return 'ERROR';

	// save the sign
	var b_negative = Boolean(n_value < 0);
	n_value = Math.abs(n_value);
	
	// round to 1/100 precision, add ending zeroes if needed
	var s_result = String(Math.round(n_value*1e2)%1e2 + '00').substring(0,2);

	// separate all orders
	var b_first = true;
	var s_subresult;
	while (n_value > 1) {
		s_subresult = (n_value >= 1e3 ? '00' : '') + Math.floor(n_value%1e3);
		s_result = s_subresult.slice(-3) + (b_first ? '.' : ',') + s_result;
		b_first = false;
		n_value = n_value/1e3;
	}
	// add at least one integer digit
	if (b_first)
		s_result = '0.' + s_result;
	
	// apply formatting and return
	return  b_negative
		? '($' + s_result + ')'
		: '$' + s_result;
}

function getDiscount(price,series) {

//var strSeriesToDiscount = "Macquarie Revision Guides.; Macquarie Revision Guides;";

var strSeriesToDiscount = "";

if (strSeriesToDiscount.indexOf(unescape(series))!= -1 ) { // discount the price
  var fix = price;
  if (fix.indexOf('$')!=-1) {
   fix = price.substring(1);
  }

  discount = String("$" + (Number(fix*0.9).toFixed(2)));

  return discount;
}
else {
  return price;
}
}

function checkIsAvailable(date) { // checks to see if a book is released yet
  if (date!="") {
    var thisPageDateSplit = date.split('/');
    thisDay = thisPageDateSplit[0];
    thisMonth = thisPageDateSplit[1] - 1;
    thisYear = thisPageDateSplit[2];

    var bookDate = new Date();
    bookDate.setFullYear(thisYear, thisMonth, thisDay);
  }
  else {
  return true;
  }

currentDate  = new Date();

if (currentDate < bookDate) {
  return false;
}
return true;
}

function convISBN10toISBN13(str) {
    var c;
    var checkDigit = 0;
    var result = "";

    c = '9';
    result += c;
    checkDigit += (c - 0) * 1;

    c = '7';
    result += c;
    checkDigit += (c - 0) * 3;

    c = '8';
    result += c;
    checkDigit += (c - 0) * 1;

    for ( i = 0; i < 9; i++ ) {  // >
        c = str.charAt(i);
        if ( i % 2 == 0 )
            checkDigit += (c - 0) * 3;
        else
            checkDigit += (c - 0) * 1;
        result += c;
    }
    checkDigit = (10 - (checkDigit % 10)) % 10;
    result += (checkDigit + "");

    return ( result );
}

function preEditISBN(str)
{
    var len = str.length;
    var c;
    var s;

    if ( (str.substring(0,4) == 'ISBN') || (str.substring(0,4) == 'isbn') ) {
        str = str.substring(4, len);
        len = str.length;
    }

    s = "";
    for ( i = 0; i < len; i++ ) {  // >
        c = str.charAt(i);
        if ( (c == '-') || (c == ' ') )
            continue;
        s += c;
    }
    str = s;

    return ( str );
}