function ShoppingCart()
{
  this.items = new Array();
  this.loaded = false;
  this.orderPage = ((document.location.toString().indexOf('/homepages/')==-1)&&(typeof category != "undefined"));
  this.handlingCharge = 5.95;
  
  if(typeof ShoppingCart._initialized == "undefined")
  {
    ShoppingCart.prototype.printMiniCart = function()
    {
      document.write('<div id="cart">');
      
        if(this.orderPage)
        {
          document.write('<a href="#" class="addToCart" onclick="addItemsToCart(event)">Add to order</a>');
        } else {
                    if(document.forms[0].Template && document.forms[0].Template.value != 'domPrimaryHome')
                    {
                        document.write('<span class="addToCart">Add to order</span>');
                    }
               }
       
        if(this.items.length > 0)
        {
          document.write('<a href="libraries/Shopping+cart+summary?open&template=domPrimary">View order</a>');
          document.write('<a href="libraries/CheckoutNew?open&template=domPrimary">Checkout</a>');
        } else {
          document.write('<span class="viewOrder">View order</span>');
          document.write('<span class="checkout">Checkout</span>');
        }       
        document.write('<h3>Shopping Summary</h3>');
        document.write('<p id="items">No. of items: ',this.getItemsQuantity(),'</p>');
        document.write('<p id="total">Current total: $',this.getTotal(),'</p>');        
        if((typeof checkTC != "undefined")&&(checkTC == true))
        {
            document.write('<p id="etotal">e-Club total: $',this.getEClubTotal(),'</p>');
        }    
          
      document.write('</div>');
      
    };
    
    ShoppingCart.prototype.load = function()
    {
   
      if(!getCookie('MacPrimary') || getCookie('MacPrimary')=="") return false;
      
      //this.items = new Array();
      if(this.items.length == 0)
      {
      
      var oCookie = getCookie('MacPrimary').split(';');
      for(var i=0; i < oCookie.length; i++)
      {        
        var oCartItem = new CartItem(this.loadOnixBook(oCookie[i]).split('|'));        
        this.items.push(oCartItem);
      }
      }
      this.loaded = true;
      /*
      var oStr = "cart items:" + this.items.length + "\n\n";
      for(var i=0; i<this.items.length;i++)
      {
        
        oStr += "\n" + this.items[i].isbn + "   " + this.items[i].title + "   " +   this.items[i].price + "   " +   this.items[i].buyInspect + "   " +   this.items[i].quantity + "   " + this.items[i].divCatStr;
      }
      alert(getCookie('MacPrimary') + "\n\n\n\n" + oStr);
      */
    };
    ShoppingCart.prototype.loadFromCookie = function(str)
    {
        var splitStr = str.split('|');
        var item = new Array();
        item.push(splitStr[0]);
        item.push('t');
        item.push(splitStr[1]);
        item.push(splitStr[2]);
        item.push(splitStr[3]);
        item.push(splitStr[4]);
        return item.join('|');
    };
    
    ShoppingCart.prototype.loadOnixBook = function(str)
    {
        //str = str.split('|');
        //var sStr = str[0] + '|' + str[3] + '|' + str[4] + '|' + str[5];
        //var splitStr = sStr.split('|');
        var splitStr = str.split('|');
        var sUrl = '/primary/newonix/onixsearch.js?open&query=([ISBN]=' + splitStr[0] + ')+and+[FORM]=Product&start=1&count=2&label=CartBook';
        var oXHR = createXHR();
        oXHR.open('GET',sUrl,false);
        oXHR.send(null);  
        eval(oXHR.responseText);
        
        var item = new Array();
        if(typeof searchOnixResultsCartBook[1] != 'undefined')
        {
            item.push(splitStr[0]);
            item.push(unescape(searchOnixResultsCartBook[1].viewCol2));
            item.push(unescape(searchOnixResultsCartBook[1].viewCol7));
            item.push(splitStr[1]);
            item.push(splitStr[2]);
            if(typeof searchOnixResultsCartBook[1].viewCol15 != 'undefined')
            {
                item.push(splitStr[3] + '>' + unescape(searchOnixResultsCartBook[1].viewCol13).toLowerCase().replace(/[\s\W]/gi,"") + '>' + unescape(searchOnixResultsCartBook[1].viewCol15).toLowerCase().replace(/[\s\W]/gi,""));
            } else {
                         item.push(splitStr[3] + '>' + unescape(searchOnixResultsCartBook[1].viewCol13).toLowerCase().replace(/[\s\W]/gi,""));
                   }            
        }
        return item.join('|');
    };
    
    ShoppingCart.prototype.save = function()
    {
      //if(this.items.length == 0) return false;      
      var cookieExpires = new Date();
      cookieExpires.setTime(cookieExpires.getTime() + (1 * 60 * 60 * 1000 ));
      var tmpCookie = new Array();
      //for(var i=0; i < this.items.length; i++) tmpCookie.push(this.items[i].cookieString());
      for(var i=0; i < this.items.length; i++) tmpCookie.push(this.items[i].newCookieString());
      //alert(tmpCookie.join(';'));
      setCookie('MacPrimary', tmpCookie.join(';'), cookieExpires, '/');
      
      this.loaded = false;
      this.load();
            
    }
    
    ShoppingCart.prototype.isCartPage = function ()
    {
        var section = (document.forms[0].Section != 'undefined' && document.forms[0].Section.value.length > 0) ? unescape(document.forms[0].Section.value) : '';
        var subsection = (document.forms[0].Subsection != 'undefined' && document.forms[0].Subsection.value.length > 0) ? unescape(document.forms[0].Subsection.value) : '';
        if(section && subsection && section == 'Library' && subsection == 'Shopping cart')
        {
            return true;
        }
        return false;
    };
    
    ShoppingCart.prototype.isIsbnInCart = function (isbn)
    {
      if(!this.loaded) return false;      
      for(var i=0; i < this.items.length; i++)
      {
        if(this.items[i].isbn.toLowerCase() == isbn.toLowerCase()) return true;
      }
      return false;
    };
    
    ShoppingCart.prototype.addToCart = function (isbn,title,price,buyInspect,quantity,divCatStr)
    {
      if(this.isIsbnInCart(isbn)) return false;    
        
      var tempArray = new Array(isbn,title,price,buyInspect,quantity,divCatStr);
      var tempItem = new CartItem(tempArray);
      this.items.push(tempItem); 
      this.save();
    };
    
    ShoppingCart.prototype.deleteFromCart = function(isbn)
    {
      if(!this.isIsbnInCart(isbn)) return false;      
      var tempArray = new Array();
      for(var i=0; i < this.items.length; i++)
      {
        if(isbn.toLowerCase() != this.items[i].isbn.toLowerCase()) tempArray.push(this.items[i]);
      }
      this.items = new Array();
      for(var i=0; i < tempArray.length; i++) this.items.push(tempArray[i]);
      this.save();
    };
    
    ShoppingCart.prototype.updateShoppingSummary = function ()
    {
      var cart = document.getElementById('cart');
      cart.innerHTML = "";      
      if(this.orderPage)
      {
          var addToCart = document.createElement('a');
          addToCart.setAttribute('href','#');
          if(document.attachEvent)
          {
            addToCart.onclick = function(oEvent){addItemsToCart(event);}; 
          } else {
            addToCart.setAttribute('onclick','addItemsToCart(event)'); 
          }
      } else {
          var addToCart = document.createElement('span');
      }
      addToCart.className = "addToCart";
      addToCart.appendChild(document.createTextNode('Add to order'));
      cart.appendChild(addToCart);
    
      if(this.items.length != 0)
      {
          var viewOrder = document.createElement('a');
          viewOrder.setAttribute('href','libraries/Shopping+cart+summary');
      } else {
          var viewOrder = document.createElement('span');
          viewOrder.className = "viewOrder";
      }
      viewOrder.appendChild(document.createTextNode('View order'));
      cart.appendChild(viewOrder);
      
      if(this.items.length != 0)
      {
          var checkout = document.createElement('a');
          checkout.setAttribute('href','libraries/CheckoutNew');
      } else {
          var checkout = document.createElement('span');
          checkout.className = "checkout";
      }
      checkout.appendChild(document.createTextNode('Checkout'));
      cart.appendChild(checkout);      
      var oHeading = document.createElement('h3');
      oHeading.appendChild(document.createTextNode('Shopping Summary'));
      cart.appendChild(oHeading);      
      var oItems = document.createElement('p');
      oItems.setAttribute('id','items');
      oItems.appendChild(document.createTextNode('No. of items: ' + this.getItemsQuantity()));
      cart.appendChild(oItems);       
      var oTotal = document.createElement('p');
      oTotal.setAttribute('id','total');
      oTotal.appendChild(document.createTextNode('Current total: $' + this.getTotal()));
      cart.appendChild(oTotal);      
      if((typeof checkTC != "undefined")&&(checkTC == true))
      {
          var oETotal = document.createElement('p');
          oETotal.setAttribute('id','etotal');
          oETotal.appendChild(document.createTextNode('e-Club total: $' + this.getEClubTotal()));
          cart.appendChild(oETotal);   
      }
    };
    
    ShoppingCart.prototype.isItemInspect = function(isbn)
    {
      if(!this.isIsbnInCart(isbn)) return false;      
      for(var i=0; i < this.items.length; i++)
      {
        if((this.items[i].isbn.toLowerCase() == isbn.toLowerCase())&&(this.items[i].buyInspect.substring(1) == "I")) return true;
      }
      return false;
    };
    
    ShoppingCart.prototype.getItemQuantity = function(isbn)
    {
      if(!this.isIsbnInCart(isbn)) return false;
      for(var i=0; i < this.items.length; i++)
      {
        if(this.items[i].isbn.toLowerCase() == isbn.toLowerCase()) return this.items[i].quantity;
      }
      return false;
    }
    
    ShoppingCart.prototype.getItemsQuantity = function()
    {
      if(!this.loaded) return 0;
      var quantity = 0;
      for(var i=0; i < this.items.length; i++) quantity += parseInt(this.items[i].quantity);
      return quantity;
    };
    
    ShoppingCart.prototype.getTotal = function()
    {
      if(!this.loaded) return "0.0";
      var total = 0;
      for(var i=0; i < this.items.length; i++) 
      {
        if(this.items[i].buyInspect.substring(1) != "I")
        {
          if(this.items[i].price.indexOf('$') == -1)
          {    
            var tempPrice = Number(this.items[i].price);
          } else {
            var tempPrice = Number(this.items[i].price.substring(1));            
          }
          
          total += (tempPrice) * (Number(this.items[i].quantity));
        }
      }
      if((typeof oCartForm == "object")&&((oCartForm.step == "2")||(oCartForm.step == "3"))&&(oCartForm.payType == "2")&&(checkTC == false))
      {
        total += this.handlingCharge;
      }
      
      return total.toFixed(2);
    };
    
    ShoppingCart.prototype.getEClubTotal = function()
    {
      if(!this.loaded) return "0.0";
      var total = 0;
      for(var i=0; i < this.items.length; i++) 
      {
        if(this.items[i].buyInspect.substring(1) != "I")
        {
          if(this.items[i].price.indexOf('$') == -1)
          {    
            var tempPrice = Number(this.items[i].price);
          } else {
            var tempPrice = Number(this.items[i].price.substring(1));            
          }
          if(this.items[i].isEClub()&&((typeof checkTC != "undefined")&&(checkTC == true)))
          {
            tempPrice = tempPrice * 0.9;
          }
          total += (tempPrice) * (Number(this.items[i].quantity));
        }
      }
      if((typeof oCartForm == "object")&&((oCartForm.step == "2")||(oCartForm.step == "3"))&&(oCartForm.payType == "2")&&(checkTC == false))
      {
        total += this.handlingCharge;
      }
      
      return total.toFixed(2);
    };
    
    ShoppingCart.prototype.eClubPrice = function(i)
    {
        if(this.items[i].price.indexOf('$') == -1)
        {
            var ePrice = Number(this.items[i].price);
                    
        } else {
            var ePrice = Number(this.items[i].price.substring(1));
        }
        return (ePrice * 0.9).toFixed(2);
    };
    
    ShoppingCart.prototype.setAddToOrder = function()
    {      
    };
    
    ShoppingCart.prototype.printShoppingCartOverviewHeader = function()
    {
      document.write('<thead>');
      document.write('<tr>');
      document.write('<th>ISBN</th>');
      document.write('<th>Title</th>');
      document.write('<th>RRP</th>');
      document.write('<th>e-Club price</th>');
      document.write('<th>Quantity</th>');
      document.write('<th>Inspect</th>');
      document.write('<th>Buy</th>');
      document.write('<th class="last"></th>');
      document.write('</tr>');
      document.write('</thead>'); 
    };
    
     ShoppingCart.prototype.printInspectBuy = function(ib,i)
    {
      if(ib.toUpperCase() == (this.items[i].buyInspect.substring(1)).toUpperCase())return 'checked';
      return "";
    };
    
    ShoppingCart.prototype.inspectAvailable = function(i)
    {
      if((this.items[i].buyInspect.substring(0,1)).toUpperCase() == "I")return '';      
      return 'disabled';
    };
    
    ShoppingCart.prototype.isInspected = function(i)
    {
      if(this.items[i].buyInspect == "II")return 'disabled="disabled"';      
      return '';
    };
    
    ShoppingCart.prototype.printShoppingCartOverview = function()
    {
      if(this.items.length == 0)return false;
      document.write('<table>');
        document.write('<caption>Book information</caption>');
        this.printShoppingCartOverviewHeader();
        document.write('<tbody>');
        for(var i=0; i < this.items.length; i++)
        {        
           document.write('<tr>');
              document.write('<td>',isbn10to13(this.items[i].isbn),'</td>');
              var bookLink = this.items[i].getBookLink();
              //var bookLink = "/primary/newonix/domisbn/" + this.items[i].isbn + "?open&template=domPrimary&ed=site/primed3.nsf";
              document.write('<td class="title"><a href="',bookLink,'" title="',this.items[i].title,'" >',this.items[i].title,'</a></td>');
              if(this.items[i].isEClub()&&((typeof checkTC != "undefined")&&(checkTC == true)))
              {
                  document.write('<td>-</td>');
                  document.write('<td>$',this.eClubPrice(i),'</td>');
              } else {
                  document.write('<td>',this.items[i].price,'</td>');
                  document.write('<td>-</td>');
              }
              document.write('<td><input type="text" class="units" value="',this.items[i].quantity,'" ',this.isInspected(i),'/></td>');
              document.write('<td><input type="radio" name="ib',i,'" id="ib',i,'" value="I" ',this.printInspectBuy('I',i),' ',this.inspectAvailable(i),' onclick="updateInspectBuy(event)" /></td>');
              document.write('<td><input type="radio" name="ib',i,'" id="ib',i,'" value="B" ',this.printInspectBuy('B',i),' onclick="updateInspectBuy(event)" /></td>');
              //document.write('<td class="last"><a href="#" class="remove" name="',i,'" onclick="removefromOverviewCart(event)">remove</a></td>');
              document.write('<td class="last"><input type="button" class="remove" name="',i,'" onclick="removefromOverviewCart(event)" value="remove" /></td>');
           document.write('</tr>');
        }       
        document.write('</tbody>');      
      document.write('</table>'); 
      if((typeof checkTC != "undefined")&&(checkTC == true))
      {
        document.write('<p id="totalPrice"><span>Total purchase<br />$',this.getEClubTotal(),'</span></p>');
      } else {
        document.write('<p id="totalPrice"><span>Total purchase<br />$',this.getTotal(),'</span></p>');
      }
      //document.write('<div class="updateOrderHolder"><a class="updateOrder" href="#" onclick="updateOverviewCart(event)">update order</a></div>');
      document.write('<div class="updateOrderHolder"><input type="button" class="updateOrder" onclick="updateOverviewCart(event)" value="Update order" /></div>');
    };
    
    ShoppingCart.prototype.updateShoppingCartOverview = function()
    {
      var oBody = document.getElementById('bodyMiddle');
      var tBody = oBody.getElementsByTagName('tbody');
      var trItems = tBody[0].getElementsByTagName('tr');
      for (var i = (trItems.length - 1); i > -1; i--)
      {
        tBody[0].removeChild(trItems[i]);
      }      
      for(var i=0; i < this.items.length; i++)
      {
        tBody[0].appendChild(this.attachItem(i));        
      }
      var oTotal = document.getElementById('totalPrice');
      if((typeof checkTC != "undefined")&&(checkTC == true))
      {
        oTotal.innerHTML = "<span>Total purchase<br />$" + this.getEClubTotal() + "</span>";
      } else {
        oTotal.innerHTML = "<span>Total purchase<br />$" + this.getTotal() + "</span>";
      }      
      this.checkRadioButtons();
    };
    
    ShoppingCart.prototype.checkRadioButtons = function()
    {    
        var oTBody = document.getElementsByTagName('tbody');
        var itemHolders = oTBody[0].getElementsByTagName('tr');
        for(var i=0; i < itemHolders.length; i++)
        {
            var oTempInputs = itemHolders[i].getElementsByTagName('input');
            var oInputs = new Array();
            for(var n=0; n < oTempInputs.length; n++)
            {
                if(oTempInputs[n].type == "radio") oInputs.push(oTempInputs[n]);
            }
            oInputs[0].checked = false;
            oInputs[1].checked = false;
            if(this.items[i].buyInspect == "II")
            {
                oInputs[0].checked = true;                
            } else {
                oInputs[1].checked = true;
            }
        }
    };
    
    ShoppingCart.prototype.checkInspectBuy = function(ib,i)
    {    
      if((this.items[i].buyInspect.substring(1)).toUpperCase() == ib)return true;
      return false;
    };
    
    
    
    
  }
  
  this.load();
}

function CartItem(item)
{
  this.isbn = item[0];
  this.title = item[1];
  this.price = item[2];
  this.buyInspect = item[3];
  this.quantity = item[4];  
  this.divCatStr = item[5];
  
  if(typeof CartItem._initialized == "undefined")
  {
      CartItem.prototype.cookieString = function()
      {
        return (this.isbn + "|" + this.title + "|" + this.price + "|" + this.buyInspect + "|" + this.quantity + "|" + this.divCatStr);
      };
      
      CartItem.prototype.newCookieString = function()
      {
        if(this.divCatStr.indexOf('>') != -1)
        {
            var ciDivision = this.divCatStr.split('>')[0];
        } else {
                    var ciDivision = this.divCatStr;
        }
        return (this.isbn + "|" + this.buyInspect + "|" + this.quantity + "|" + ciDivision);
      };
      
      
  }
  CartItem._initialized = true;
}


oCart = new ShoppingCart();