//JRA Interactive, Olympia,Wa 
var strMyTitle
var strMyNum
var strMyPrice

//load page data. Called by an internal script on each product page.
function setPageData(title,catNum,price) {
//global used by showBasket() and calc()
	 strMyTitle = title
	 strMyNum = catNum
	 strMyPrice = price
}

//check for cookie before going to the backpack
function goPack() {
	//get the current basket from the cookie
	var strBasket=getBasket();
	if (strBasket==null) {
		//no basket started, so alert visitor
		alert("Therešs nothing in your backpack yet.")
	} else {
	 	window.location="http://www.gnomesworld.com/pages/orderNew.html"
	}
}

//Add page info to basket. This function is in all product pages and is here in basketCode
//for testing. If it doesn't appear in a product page, it runs from here.
function addToBasket() {
 	addBasket(strMyTitle,strMyNum,strMyPrice,1)
 	alert('"' + strMyTitle + '"' + " added to your pack. \r\nYou can change this later.")
}
	
//convert basket to a multi-dimensional array and use it to add quantities,
//then save to the cookie
function addBasket(strTitle,strCatNum,strPrice,strQty) {
	//get the current basket from the cookie
	var strBasket=getBasket();
	if (strBasket==null) {
		//no basket started, so create one
		var lstBasket = new Array(escape(strTitle) + "," + strCatNum + "," + strPrice + "," + strQty)
	} else {
		//need to add to the current basket
		//convert to a multidimensional array
		lstBasket = stringToList(strBasket)
		
		//now we have the list of product property arrays
		iNext = (lstBasket.length)
		var iCatTest
		var fMatch = 0
		iLast = ( lstBasket.length - 1)
		//for each title in the list, test for a matching catNum
		for (var i = 0; i <= iLast; i++){
			iCatTest = (lstBasket[i][1])
			if (strCatNum == iCatTest) {
				//match. So add to the quantity and prepare to return the list
				iQty = lstBasket[i][3]
				iQty++
				lstBasket[i][3] = (iQty)
				fMatch = 1
				break  //leave the loop
			}
		}
		//now, if there was a match, we're done with the list, else add the new list
		if (fMatch == 0) {
			lstBasket[iNext] = new Array(escape(strTitle),strCatNum,strPrice,strQty)	
		}
	} //end old or new basket routine
	
	//test
	strBasketNew = lstBasket.join(",")
	SetCookie ("gnomePack",strBasketNew,null,"/");	
}

//take a string (from the cookie) and turn it into a multi-dimensional list
function stringToList(strPackList) {
	var lstBasic = strPackList.split(",");
	var lastitem = (lstBasic.length);
	//set final list
	var lstMulti = new Array();
	//counter to group items into fours
	var iCounter = 0;
	//for the individual product lists
	var lstTemp = new Array();
	//form a list of lists (4 elements of each product)
	
	for (var i = 0; i <= lastitem; i++) {
		//make four element list from next 4 items in lstBasic
		lstTemp[iCounter] = lstBasic[i]
		iCounter++
		//after iCounter incremented, if it is 4, we're done with this list
		if (iCounter == 4) {
			//prod list is complete, so add to lstMulti	
			lstMulti[lstMulti.length] = new Array(lstTemp[0],lstTemp[1],lstTemp[2],lstTemp[3]) 
			iCounter = 0
		}
	}
	//lstMulti should now be a list of product attribute lists
	return(lstMulti)
}

// PRIVATE: returns the decoded value of a cookie
function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
    endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

//  Returns the value of the cookie specified by "name".
//  returns - String object containing the cookie value, or null if
//      the cookie does not exist.
//
function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break; 
  }
  return null;
}

//  Create or update a cookie.
function SetCookie (name,value,expires,path,domain,secure) {
  document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

//  Delete a cookie. (Sets expiration date to start of epoch)
//    name -   String object containing the cookie name
//    path -   String object containing the path of the cookie to delete.  This MUST
//             be the same as the path used to create the cookie, or null/omitted if
//             no path was specified when creating the cookie.
//    domain - String object containing the domain of the cookie to delete.  This MUST
//             be the same as the domain used to create the cookie, or null/omitted if
//             no domain was specified when creating the cookie.
//
function DeleteCookie (name,path,domain) {
  if (GetCookie(name)) {
    document.cookie = name + "=" +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

//get the basket contents so we can add to them. If there's no basket, it 
//returns null
function getBasket() {
	var strBasket=GetCookie("gnomePack");
	return(strBasket)
}