//=====================================================================||
//                    JavaScript Shopping Cart                         ||
//                                                                     ||
//=====================================================================||

// General Options ||
Manage_Cart_URL       = 'showcart.html';
Checkout_URL          = 'https://www3777.ssldomain.com/americansportscardesigns/checkout.html';
Checkout_text         = 'The items listed below are currently in your shopping cart:';
Checkout_method       = 'GET';
DisplayAdded          = false;
DisplayShippingColumn = false;
DisplayShippingRow    = false;
DisplayTaxRow         = false;
TaxRate               = 0.0;
Tax_String            = '<FONT SIZE="-1">FL residents must add 6% sales tax</FONT>';

// * String Options ||
strSorry              = "I'm Sorry, your cart is full, please proceed to checkout.";
strAdded              = " has been added to your shopping cart.";
strRemove             = "Click 'Ok' to remove this product from your shopping cart.";
strILabel             = "Product ID";
strDLabel             = "Description";
strQLabel             = "Quantity";
strPLabel             = "Price";
strSLabel             = "Shipping";
strRLabel             = "Remove";
strRButton            = "Remove";
strSUB                = "SUBTOTAL";
strSHIP               = "SHIPPING";
strTAX                = "TAX";
strTOT                = "TOTAL";
strErrQty             = "Invalid Quantity.";
strNewQty             = 'Please enter new quantity:';

// Programmer Options ||
Item_ID               = 'ID_';
Item_Qty              = 'QUANTITY_';
Item_Price            = 'PRICE_';
Item_Name             = 'NAME_';
Item_Shipping         = 'SHIPPING_';
Item_Info             = 'ADDTLINFO_';
Order_Subtotal        = 'SUBTOTAL';
Order_Shipping        = 'SHIPPING';
Order_Tax             = 'TAX';
Order_Total           = 'TOTAL';
Append_Item           = true;


//=====================================================================||
//---------------------------------------------------------------------||
//    YOU DO NOT NEED TO MAKE ANY MODIFICATIONS BELOW THIS LINE        ||
//---------------------------------------------------------------------||
//=====================================================================||

//---------------------------------------------------------------------||
// FUNCTION:    View_Cart                                              ||
// PARAMETERS:  None                                                   ||
// RETURNS:     Nothing                                                ||
// PURPOSE:     Allows users to view their cart                        ||
//---------------------------------------------------------------------||

function View_Cart() {
   window.location.href= Manage_Cart_URL;
   return(false);
}

//---------------------------------------------------------------------||
// FUNCTION:    CKquantity                                             ||
// PARAMETERS:  Quantity to                                            ||
// RETURNS:     Quantity as a number, and possible alert               ||
// PURPOSE:     Make sure quantity is represented as a number          ||
//---------------------------------------------------------------------||

function CKquantity(checkString) {
   var strNewQuantity = "";

   for ( i = 0; i < checkString.length; i++ ) {
      ch = checkString.substring(i, i+1);
      if ( (ch >= "0" && ch <= "9") || (ch == '.') )
         strNewQuantity += ch;
   }

   if ( strNewQuantity.length < 1 )
      strNewQuantity = "1";

   return(strNewQuantity);
}

//---------------------------------------------------------------------||
// FUNCTION:    AddToCart                                              ||
// PARAMETERS:  Form Object                                            ||
// RETURNS:     Cookie to user's browser, with prompt                  ||
// PURPOSE:     Adds a product to the user's shopping cart             ||
//---------------------------------------------------------------------||

function AddToCart(thisForm) {
   var iNumberOrdered = 0;
   var bAlreadyInCart = false;
   var notice = "";
   iNumberOrdered = GetCookie("NumberOrdered");

   if ( thisForm.ID_NUM == null )
      strID_NUM    = "";
   else
      strID_NUM    = thisForm.ID_NUM.value;

   if ( thisForm.QUANTITY == null )
      strQUANTITY  = "1";
   else
      strQUANTITY  = thisForm.QUANTITY.value;

   if ( thisForm.PRICE == null )
      strPRICE     = "0.00";
   else
      strPRICE     = thisForm.PRICE.value;

   if ( thisForm.NAME == null )
      strNAME      = "";
   else
      strNAME      = thisForm.NAME.value;

   if ( thisForm.SHIPPING == null )
      strSHIPPING  = "0.00";
   else
      strSHIPPING  = thisForm.SHIPPING.value;
 
   if ( thisForm.ADDITIONALINFO == null )
      strADDTLINFO = "";
   else
      strADDTLINFO = thisForm.ADDITIONALINFO[thisForm.ADDITIONALINFO.selectedIndex].value;

   //Is this product already in the cart?  If so, increment quantity instead of adding another.
   for ( i = 1; i <= iNumberOrdered; i++ ) {
      NewOrder = "Order." + i;
      database = "";
      database = GetCookie(NewOrder);
 
      Token0 = database.indexOf("|", 0);
      Token1 = database.indexOf("|", Token0+1);
      Token2 = database.indexOf("|", Token1+1);
      Token3 = database.indexOf("|", Token2+1);
      Token4 = database.indexOf("|", Token3+1);
 
      fields = new Array;
      fields[0] = database.substring( 0, Token0 );
      fields[1] = database.substring( Token0+1, Token1 );
      fields[2] = database.substring( Token1+1, Token2 );
      fields[3] = database.substring( Token2+1, Token3 );
      fields[4] = database.substring( Token3+1, Token4 );
      fields[5] = database.substring( Token4+1, database.length );
 
      if ( fields[0] == strID_NUM &&
           fields[2] == strPRICE  &&
           fields[3] == strNAME   &&
           fields[5] == strADDTLINFO
         ) {
         bAlreadyInCart = true;
         dbUpdatedOrder = strID_NUM    + "|" +
                          (parseInt(strQUANTITY)+parseInt(fields[1]))  + "|" +
                          strPRICE     + "|" +
                          strNAME      + "|" +
                          strSHIPPING  + "|" +
                          strADDTLINFO;
         strNewOrder = "Order." + i;
         DeleteCookie(strNewOrder, "/");
         SetCookie(strNewOrder, dbUpdatedOrder, null, "/");
         notice = strQUANTITY + " - " + strNAME + strAdded;
         break;
      }
   }


   if( !bAlreadyInCart ) {
      iNumberOrdered++;

      if ( iNumberOrdered > 12 )
         alert( strSorry );
      else {
         dbUpdatedOrder = strID_NUM    + "|" + 
                          strQUANTITY  + "|" +
                          strPRICE     + "|" +
                          strNAME      + "|" +
                          strSHIPPING  + "|" +
                          strADDTLINFO;

         strNewOrder = "Order." + iNumberOrdered;
         SetCookie(strNewOrder, dbUpdatedOrder, null, "/");
         SetCookie("NumberOrdered", iNumberOrdered, null, "/");
         notice = strQUANTITY + " - " + strNAME + strAdded;
      }
   }

   if( DisplayAdded )
      alert(notice);
}

//---------------------------------------------------------------------||
// FUNCTION:    getCookieVal                                           ||
// PARAMETERS:  offset                                                 ||
// RETURNS:     URL unescaped Cookie Value                             ||
// PURPOSE:     Get a specific value from 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)));
}

//---------------------------------------------------------------------||
// FUNCTION:    FixCookieDate                                          ||
// PARAMETERS:  date                                                   ||
// RETURNS:     date                                                   ||
// PURPOSE:     Fixes cookie date, stores back in date                 ||
//---------------------------------------------------------------------||

function FixCookieDate (date) {
   var base = new Date(0);
   var skew = base.getTime();

   date.setTime (date.getTime() - skew);
}

//---------------------------------------------------------------------||
// FUNCTION:    GetCookie                                              ||
// PARAMETERS:  Name                                                   ||
// RETURNS:     Value in Cookie                                        ||
// PURPOSE:     Retrieves cookie from users browser                    ||
//---------------------------------------------------------------------||

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);
}

//---------------------------------------------------------------------||
// FUNCTION:    SetCookie                                              ||
// PARAMETERS:  name, value, expiration date, path, domain, security   ||
// RETURNS:     Null                                                   ||
// PURPOSE:     Stores a cookie in the users browser                   ||
//---------------------------------------------------------------------||

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" : "");
}

//---------------------------------------------------------------------||
// FUNCTION:    DeleteCookie                                           ||
// PARAMETERS:  Cookie name, path, domain                              ||
// RETURNS:     null                                                   ||
// PURPOSE:     Removes a cookie from users browser.                   ||
//---------------------------------------------------------------------||

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";
   }
}

//---------------------------------------------------------------------||
// FUNCTION:    MoneyFormat                                            ||
// PARAMETERS:  Number to be formatted                                 ||
// RETURNS:     Formatted Number                                       ||
// PURPOSE:     Reformats Dollar Amount to #.## format                 ||
//---------------------------------------------------------------------||

function moneyFormat(input) {
   var dollars = Math.floor(input);
   var tmp = new String(input);

   for ( var decimalAt = 0; decimalAt < tmp.length; decimalAt++ ) {
      if ( tmp.charAt(decimalAt)=="." )
         break;
   }

   var cents  = "" + Math.round(input * 100);
   cents = cents.substring(cents.length-2, cents.length)
           dollars += ((tmp.charAt(decimalAt+2)=="9")&&(cents=="00"))? 1 : 0;

   if ( cents == "0" )
      cents = "00";

   return(dollars + "." + cents);
}

//---------------------------------------------------------------------||
// FUNCTION:    RemoveFromCart                                         ||
// PARAMETERS:  Order Number to Remove                                 ||
// RETURNS:     Null                                                   ||
// PURPOSE:     Removes an item from a users shopping cart             ||
//---------------------------------------------------------------------||

function RemoveFromCart(RemOrder) {
   if ( confirm( strRemove ) ) {
      NumberOrdered = GetCookie("NumberOrdered");
      for ( i=RemOrder; i < NumberOrdered; i++ ) {
         NewOrder1 = "Order." + (i+1);
         NewOrder2 = "Order." + (i);
         database = GetCookie(NewOrder1);
         SetCookie (NewOrder2, database, null, "/");
      }
      NewOrder = "Order." + NumberOrdered;
      SetCookie ("NumberOrdered", NumberOrdered-1, null, "/");
      DeleteCookie(NewOrder, "/");
      location.href=location.href;
   }
}

//---------------------------------------------------------------------||
// FUNCTION:    ChangeQuantity                                         ||
// PARAMETERS:  Order Number to Change Quantity                        ||
// RETURNS:     Null                                                   ||
// PURPOSE:     Changes quantity of an item in the shopping cart       ||
//---------------------------------------------------------------------||

function ChangeQuantity(QtyOrder,CurrQty) {
   var newQty;

   newQty=prompt(strNewQty,CurrQty);
   if( isNaN(newQty) ) {
      alert( strErrQty );
   } else {
      NewOrder = "Order." + QtyOrder;
      database = "";
      database = GetCookie(NewOrder);
 
      Token0 = database.indexOf("|", 0);
      Token1 = database.indexOf("|", Token0+1);
      Token2 = database.indexOf("|", Token1+1);
      Token3 = database.indexOf("|", Token2+1);
      Token4 = database.indexOf("|", Token3+1);
 
      fields = new Array;
      fields[0] = database.substring( 0, Token0 );
      fields[1] = database.substring( Token0+1, Token1 );
      fields[2] = database.substring( Token1+1, Token2 );
      fields[3] = database.substring( Token2+1, Token3 );
      fields[4] = database.substring( Token3+1, Token4 );
      fields[5] = database.substring( Token4+1, database.length );
 
      dbUpdatedOrder = fields[0] + "|" +
                       newQty    + "|" +
                       fields[2] + "|" +
                       fields[3] + "|" +
                       fields[4] + "|" +
                       fields[5];
      strNewOrder = "Order." + QtyOrder;
      DeleteCookie(strNewOrder, "/");
      SetCookie(strNewOrder, dbUpdatedOrder, null, "/");

      return true;
   }

   return false;
}

//---------------------------------------------------------------------||
// FUNCTION:    GetFromCart                                            ||
// PARAMETERS:  Null                                                   ||
// RETURNS:     Product Table Written to Document                      ||
// PURPOSE:     Draws current cart product table on HTML page          ||
//---------------------------------------------------------------------||

function GetFromCart( fShipping ) {
   if( fShipping )
      WriteToForm( true, fShipping );
   else
      WriteToForm( true, 0 );
}

//---------------------------------------------------------------------||
// FUNCTION:    WriteToForm                                            ||
// PARAMETERS:  Null                                                   ||
// RETURNS:     Product hidden fields Written to Document              ||
// PURPOSE:     Draws current cart product hidden fields on HTML form  ||
//              if bDisplay == true, shows cart output as HTML table   ||
//---------------------------------------------------------------------||

function WriteToForm( bDisplay, fShipping ) {
   var iNumberOrdered = 0;
   var fTotal         = 0;
   var strTotal       = "";
   var strShipping    = "";
   var strOutput      = "";
   iNumberOrdered = GetCookie("NumberOrdered");

   if (iNumberOrdered < 1) {
      document.write("<FORM>Your shopping cart is empty! &nbsp; <INPUT TYPE=\"BUTTON\" VALUE=\"Continue Shopping\" onClick=\"javascript:history.go(-1);\"></FORM>");
      document.close();
      return(false);
   }
   document.write(Checkout_text);
   document.write("<P><FORM ACTION=\"" + Checkout_URL + "\" METHOD=\"" + Checkout_method + "\">");

   if ( bDisplay )
      strOutput = "<TABLE CELLSPACING=5 ALIGN=CENTER WIDTH=100%><TR>" +
                  "<TD><B><U>"+strILabel+"</B></U></TD>" +
                  "<TD><B><U>"+strDLabel+"</B></U></TD>" +
                  "<TD ALIGN=\"CENTER\"><B><U>"+strQLabel+"</B></U></TD>" +
                  "<TD ALIGN=\"CENTER\"><B><U>"+strPLabel+"</B></U></TD>" +
                  (DisplayShippingColumn?"<TD ALIGN=\"CENTER\"><B>"+strSLabel+"</B></TD>":"") +
                  "<TD ALIGN=\"CENTER\"><B><U>"+strRLabel+"</B></U></TD></TR>";

   for ( i = 1; i <= iNumberOrdered; i++ ) {
      NewOrder = "Order." + i;
      database = "";
      database = GetCookie(NewOrder);

      Token0 = database.indexOf("|", 0);
      Token1 = database.indexOf("|", Token0+1);
      Token2 = database.indexOf("|", Token1+1);
      Token3 = database.indexOf("|", Token2+1);
      Token4 = database.indexOf("|", Token3+1);

      fields = new Array;
      fields[0] = database.substring( 0, Token0 );
      fields[1] = database.substring( Token0+1, Token1 );
      fields[2] = database.substring( Token1+1, Token2 );
      fields[3] = database.substring( Token2+1, Token3 );
      fields[4] = database.substring( Token3+1, Token4 );
      fields[5] = database.substring( Token4+1, database.length );

      fTotal     += (parseInt(fields[1]) * parseFloat(fields[2]) );
      fShipping  += (parseInt(fields[1]) * parseFloat(fields[4]) );
      fTax        = (fTotal * TaxRate);
      strTotal    = moneyFormat(fTotal);
      strTax      = moneyFormat(fTax);
      strShipping = moneyFormat(fShipping);

      if ( bDisplay ) {
         strOutput += "<TR><TD>"  + fields[0] + "</TD>";

         if ( fields[5] == "" )
            strOutput += "<TD ALIGN=\"CENTER\">"  + fields[3] + "</TD>";
         else
            strOutput += "<TD>"  + fields[3] + " - <I>"+ fields[5] + "</I></TD>";

         strOutput += "<TD ALIGN=\"CENTER\">" + fields[1] + "</TD>" +
                      "<TD ALIGN=\"CENTER\">"+ "\$" + moneyFormat(fields[2]) + "/ea</TD>";

         if ( DisplayShippingColumn ) {
            if ( parseFloat(fields[4]) > 0 )
               strOutput += "<TD ALIGN=\"CENTER\">"+ "\$" + moneyFormat(fields[4]) + "/ea</TD>";
            else
               strOutput += "<TD ALIGN=\"CENTER\">N/A</TD>";
         }

         strOutput += "<TD ALIGN=CENTER><input type=button value=\" "+strRButton+" \" onClick=\"RemoveFromCart("+i+")\"></TD></TR>";
      }

      if( Append_Item ) {
         strFooter = i;
      } else {
         strFooter = "";
      }
      strOutput += "<input type=hidden name=\"" + Item_ID        + strFooter + "\" value=\"" + fields[0] + "\">";
      strOutput += "<input type=hidden name=\"" + Item_Qty  + strFooter + "\" value=\"" + fields[1] + "\">";
      strOutput += "<input type=hidden name=\"" + Item_Price     + strFooter + "\" value=\"" + fields[2] + "\">";
      strOutput += "<input type=hidden name=\"" + Item_Name      + strFooter + "\" value=\"" + fields[3] + "\">";
      strOutput += "<input type=hidden name=\"" + Item_Shipping  + strFooter + "\" value=\"" + fields[4] + "\">";
      strOutput += "<input type=hidden name=\"" + Item_Info + strFooter + "\" value=\"" + fields[5] + "\">";

   }

   if ( bDisplay ) {
      strOutput += "<TR><TD><B>"+strSUB+"</B></TD>";
      strOutput += "<TD ALIGN=\"RIGHT\"><B>" + "\$" + strTotal + "</B></TD>";
      strOutput += "<TD COLSPAN=4>&nbsp; </TD>";
      strOutput += "</TR>";

      if ( DisplayShippingRow ) {
         strOutput += "<TR><TD><B>"+strSHIP+"</B></TD>";
         strOutput += "<TD ALIGN=\"RIGHT\"><B>" + "\$" + strShipping + "</B></TD>";
         strOutput += "<TD COLSPAN=4>&nbsp; </TD>";
         strOutput += "</TR>";
      }

      if ( DisplayTaxRow ) {
         strOutput += "<TR><TD><B>"+strTAX+"</B></TD>";
         strOutput += "<TD ALIGN=\"RIGHT\"><B>" + "\$" + strTax + "</B></TD>";
         strOutput += "<TD COLSPAN=4 ALIGN=\"LEFT\"><B>" + Tax_String + "</B></TD>";
         strOutput += "</TR>";
      }

      strOutput += "<TR><TD COLSPAN=6><HR NOSHADE></TD></TR>";
      strOutput += "<TR><TD><B>"+strTOT+"</B></TD>";
      strOutput += "<TD ALIGN=\"RIGHT\"><B>" + "\$" + moneyFormat((fTotal + fShipping + fTax)) + "</B></TD>";
      strOutput += "<TD COLSPAN=4>&nbsp; <INPUT TYPE=\"SUBMIT\" VALUE=\"   Check Out   \">&nbsp; &nbsp; <INPUT TYPE=\"BUTTON\" VALUE=\"Continue Shopping\"  onClick=\"javascript:history.go(-1);\"></TD>";
      strOutput += "</TR>";
      strOutput += "</TABLE></P>";

      strOutput += "<input type=hidden name=\""+Order_Subtotal+"\" value=\""+ "\$" + strTotal + "\">";
      strOutput += "<input type=hidden name=\""+Order_Shipping+"\" value=\""+ "\$" + strShipping + "\">";
      strOutput += "<input type=hidden name=\""+Order_Tax+"\"      value=\""+ "\$" + strTax + "\">";
      strOutput += "<input type=hidden name=\""+Order_Total+"\"    value=\""+ "\$" + moneyFormat((fTotal + fShipping + fTax)) + "\">";
   }

   document.write(strOutput);
   document.write("</FORM>");
   document.close();
}

//=====================================================================||
//                        END of Shopping Cart                         ||
//=====================================================================||