var ns=(document.layers);
  var ie=(document.all);
  var w3=(document.getElementById && !ie);
  var calunit=ns? "" : "px"
  var adTime

  function initAd(){
    if(!ns && !ie && !w3) return;
    if(ie)	adDiv=eval('document.all.sponsorAdDiv.style');
    else if(ns)	adDiv=eval('document.layers["sponsorAdDiv"]');
    else if(w3)	adDiv=eval('document.getElementById("sponsorAdDiv").style');	

    if (ie){documentWidth  =truebody().offsetWidth/2+truebody().scrollLeft-20;
      documentHeight =truebody().offsetHeight/2+truebody().scrollTop-20;}	
    else if (ns){documentWidth=window.innerWidth/2+window.pageXOffset-20;
      documentHeight=window.innerHeight/2+window.pageYOffset-20;} 
    else if (w3){documentWidth=self.innerWidth/2+window.pageXOffset-20;
      documentHeight=self.innerHeight/2+window.pageYOffset-20;} 
    adDiv.left=documentWidth-200+calunit;adDiv.top =documentHeight-200+calunit;
  }

  function showAd(){
    clearTimeout(adTime);
    if (ie||w3) {
      adDiv.visibility="visible";
    }else{
      adDiv.visibility ="show";
    }
    adTime = setTimeout("closeAd()",3000);
  }

  function closeAd(){
    if (ie||w3)
      adDiv.display="none";
    else
      adDiv.visibility ="hide";
    clearTimeout(adTime);
  }

  function truebody(){
    return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
  }

  function getBasket(){
    var intSubTotal = 0;
    var intPostageCost = 0;
    if($("formBasket_strBasket").value.length>0){
      dojo.io.bind({
      url: "getBasket.aspx?temp=" + Math.random(),
           formNode: document.getElementById("formBasket"),
           load: function(type, data, evt){
              var j=dojo.json.evalJSON(data);          
              var strReturn = "";
              for (var i = 0 ; i < j.length ; i++) { 
                if(parseInt(j[i]["QTY"]) > 1){var strQTY = "<br><span class=\"bluetext\">Quantity of " + j[i]["QTY"] + "</span>";}else{strQTY = "";}
                strReturn = strReturn + "<tr>\n"
                if(j[i]["Image"].length > 0){
                  strReturn = strReturn + "  <td align=middle><img id=\"BASKET" + j[i]["Id"] + "\" src=\"productimages/mini/" + j[i]["Image"] + ".png\" border=0 style=\"cursor : hand;\" alt=\"" + j[i]["Title"] + "\" onclick=\"window.location='viewProduct.aspx?product=" + j[i]["Id"] + "';\"><br>"
                }else{
                  strReturn = strReturn + "  <td align=middle>"
                }

                if(bolCheckout==false){
                  strReturn = strReturn + "<a href=\"Javascript:removeFromBasket('" + j[i]["Id"] + "');\" onMouseOut=\"MM_swapImgRestore()\" onMouseOver=\"MM_swapImage('removebtn11','','images/column_features/remove-item_ro.gif',1)\"><img name=\"removebtn11\" border=\"0\" src=\"images/column_features/remove-item.gif\" width=\"19\" height=\"19\"></a>"
                }

                strReturn = strReturn + "</td>\n"
                strReturn = strReturn + "  <td class=\"bodyText\"><a href=\"viewProduct.aspx?product=" + j[i]["Id"] + "\" class=\"linkStyle1\">" + j[i]["Title"] + "</a><br>"+ j[i]["Price"] + "<span style=\"font-size : 6pt;\">+VAT</span>" + strQTY + "</td>\n"
                strReturn = strReturn + "</tr>\n"

                intSubTotal    = intSubTotal + j[i]["intSubTotal"];
//                intPostageCost = intPostageCost + j[i]["intPostageCost"];
              }
//              intSubTotal = intSubTotal + intPostageCost;

              if(strReturn.length > 0){strReturn = "<table border=0 cellspacing=0 cellpadding=3 class=\"bodyText\">" + strReturn + "</table>\n"}
              document.getElementById("divBasket").innerHTML = strReturn;     
              if(bolCheckout==false){document.getElementById("divTotal").innerHTML = intSubTotal.toFixed(2);}


              for (var i = 0 ; i < j.length ; i++) { 
                //new dojo.dnd.HtmlDragSource(document.getElementById("BASKET" + j[i]["Id"]), "BASKET");
              }
              swapBasket(false);

           },
           error: errorHandler
      });
    }else{
      swapBasket(true);
      document.getElementById("divBasket").innerHTML = "<center>Drag products here to<br>add them to your basket</center><br><br>";
      document.getElementById("divTotal").innerHTML = "0.00";
    }
  }

  var handlerBasketRemove = function(e) {
    if ("BASKET"==Left(e.dragObject.domNode.id, 6)){
      var strSplit = e.dragObject.domNode.id.split("_");
      var Id = Right(strSplit[0], strSplit[0].length-6);
      var strBasket = "";

      strBasket = getCookie("Basket"); 

      if(strBasket==null||strBasket.length<1){
        //Cannot be null really as we must have something in it in order to drag over to this remove product from basket handler!
      }else{    

        var j=dojo.json.evalJSON("[" + strBasket + "]");
        strBasket = "";
        for (var i = 0 ; i < j.length ; i++) { 

          if(j[i]["Id"]==Id){
            //We check to see if quantity is 1. If so, remove product completely otherwise just decrement quantity by 1.
            if(parseInt(j[i]["QTY"]) > 1){
              strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + (parseInt(j[i]["QTY"])-1) + "\"},";          
            }
          }else{
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + j[i]["QTY"] + "\"},";
          }
        }        
        strBasket = Left(strBasket, strBasket.length-1)
      }

      setCookie("Basket", strBasket );

      $("formBasket_strBasket").value = "[" + strBasket + "]";

      window.location="basket.aspx";

    }
  }

  function removeFromBasket(Id) {

      var strBasket = "";
       
      strBasket = getCookie("Basket"); 

      if(strBasket==null||strBasket.length<1){
        //Cannot be null really as we must have something in it in order to drag over to this remove product from basket handler!
      }else{    

        var j=dojo.json.evalJSON("[" + strBasket + "]");
        strBasket = "";
        for (var i = 0 ; i < j.length ; i++) { 

          if(j[i]["Id"]==Id){
            //We check to see if quantity is 1. If so, remove product completely otherwise just decrement quantity by 1.
            if(parseInt(j[i]["QTY"]) > 1){
              strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + (parseInt(j[i]["QTY"])-1) + "\"},";          
            }
          }else{
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + j[i]["QTY"] + "\"},";
          }
        }        
        strBasket = Left(strBasket, strBasket.length-1)
      }

      setCookie("Basket", strBasket );

      if(strBasket.length > 0){$("formBasket_strBasket").value = "[" + strBasket + "]";}else{$("formBasket_strBasket").value = "";}

      getBasket();


  }

  var handlerdropBasket = function(e) {
    if ("PRODUCT"==Left(e.dragObject.domNode.id, 7)){
      var strSplit = e.dragObject.domNode.id.split("_");
      var Id = Right(strSplit[0], strSplit[0].length-7);
      addtobasket(Id);
    }
  }

  function addskewtobasket(addskewtobasket_strProductGUID, addskewtobasket_strSkew){    
    if(addskewtobasket_strProductGUID.length>0){
      dojo.io.bind({
      url: "setSkewSession.aspx?strproductguid=" + addskewtobasket_strProductGUID + "&skew=" + addskewtobasket_strSkew + "&temp=" + Math.random(),
           load: function(type, data, evt){
              addtobasket(addskewtobasket_strProductGUID);
              document.location = "checkout.aspx";
           },
           error: errorHandler
      });
    }
  }

  function addholderskewtobasket(addholderskewtobasket_strProductGUID, addholderskewtobasket_strSkew){    
    if(addholderskewtobasket_strProductGUID.length>0){
      dojo.io.bind({
      url: "setSkewSession.aspx?strproductguid=" + addholderskewtobasket_strProductGUID + "&skew=" + addholderskewtobasket_strSkew + "&temp=" + Math.random(),
           load: function(type, data, evt){
              addholdertobasket(addholderskewtobasket_strProductGUID, addholderskewtobasket_strSkew);              
           },
           error: errorHandler
      });
    }
  }

  function addholdertobasket(Id, holderId){
      var strBasket = "";
       
      //deleteCookie("Basket");
      strBasket = getCookie("Basket"); 

      if(strBasket==null||strBasket.length<1){
        strBasket = "{\"Id\":\"" + Id + "\",\"QTY\":\"1\"}";
      }else{
    
        var bolFound = false;
        //We now see if this product already exists in the basket in order to increase the quantity

        var j=dojo.json.evalJSON("[" + strBasket + "]");
        strBasket = "";
        for (var i = 0 ; i < j.length ; i++) { 

          if(j[i]["Id"]==Id){
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + (parseInt(j[i]["QTY"])+1) + "\"},";          
            bolFound = true;
          }else{
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + j[i]["QTY"] + "\"},";
          }
        }
        if(bolFound==false){
          strBasket = strBasket + "{\"Id\":\"" + Id + "\",\"QTY\":\"1\"},";
        }
        strBasket = Left(strBasket, strBasket.length-1)
      }

      setCookie("Basket", strBasket );

      if(strBasket.length > 0){$("formBasket_strBasket").value = "[" + strBasket + "]";}else{$("formBasket_strBasket").value = "";}

      document.location = "brodit.aspx?id=" + holderId + "&strAct=HOLDER";

  }

  function addtobasket(Id){
      var strBasket = "";
       
      //deleteCookie("Basket");
      strBasket = getCookie("Basket"); 

      if(strBasket==null||strBasket.length<1){
        strBasket = "{\"Id\":\"" + Id + "\",\"QTY\":\"1\"}";
      }else{
    
        var bolFound = false;
        //We now see if this product already exists in the basket in order to increase the quantity

        var j=dojo.json.evalJSON("[" + strBasket + "]");
        strBasket = "";
        for (var i = 0 ; i < j.length ; i++) { 

          if(j[i]["Id"]==Id){
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + (parseInt(j[i]["QTY"])+1) + "\"},";          
            bolFound = true;
          }else{
            strBasket = strBasket + "{\"Id\":\"" + j[i]["Id"] + "\",\"QTY\":\"" + j[i]["QTY"] + "\"},";
          }
        }
        if(bolFound==false){
          strBasket = strBasket + "{\"Id\":\"" + Id + "\",\"QTY\":\"1\"},";
        }
        strBasket = Left(strBasket, strBasket.length-1)
      }

      setCookie("Basket", strBasket );

      if(strBasket.length > 0){$("formBasket_strBasket").value = "[" + strBasket + "]";}else{$("formBasket_strBasket").value = "";}

      showAd();
      getBasket();

  }

  function $(e){
    return document.getElementById(e);
  }

  function errorHandler( type, error ) {
    var msg = "Something went horribly wrong ...\n" +
        error.message;
    alert( msg );
  }

  function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
  }

  function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
  }

  function verifySearch(){
    var strErr = "";
    if(document.search.strTitle.value.length < 1 && document.search.strAuthor.value.length < 1 && document.search.strKeyword.value.length < 1){
      alert("To perform a search you must enter part of the title, author or a keyword.");
      return false;
    }else{return true;}
  }

  function swapBasket(swapBasket_bolEmpty){
    if(swapBasket_bolEmpty==true){
      $("basketHeader").src = "/images/basket/basket_header.gif";
      $("basketEdge").src = "/images/template/basket_window_btm-edge.gif";
      $("basketBottom").src = "/images/template/bluebox_btm-edge.gif";
      $("basketLeft").style.backgroundImage = 'url(/images/template/basket_window_l-repeater.gif)';
      $("basketRight").style.backgroundImage = 'url(/images/template/basket_window_r-repeater.gif)';
      $("basketColour").style.backgroundColor = "#6382B9";
    }else{
      $("basketHeader").src = "/images/basket/basket_header_items.gif";
      $("basketEdge").src = "/images/basket/basket_window_btm-edge_items.gif";
      $("basketBottom").src = "/images/basket/basket_btm-edge_items.gif";
      $("basketLeft").style.backgroundImage = 'url(/images/basket/basket_l-repeater_items.gif)';
      $("basketRight").style.backgroundImage = 'url(/images/basket/basket_r-repeater_items.gif)';
      $("basketColour").style.backgroundColor = "#c00000";
    }
  }