/////////////////////////////////////////////////////

// orderlib.js

//

// Functions for order form and shopping cart

/////////////////////////////////////////////////////



var orderForm=null;

var urlflag = 0;  // read order info from cookie or url(1)

var pintax = false;



//////////////////////////////////////////

// pinOrder object

/////////////////////////////////////////

function pinOrder(name_, price_, qty_)

{

  this.name = name_;

  this.price = price_;

  if ((qty_==null) || (qty_ == "")) {

    qty_ = "1";

  }

  this.qty = qty_;

}



////////////////////////////////////////////

// retrieve the pin order from the cookie

// Parse into an array of 'pinOrder' objects

////////////////////////////////////////////

//var shipmethod=0;  // normal shipping



function getOrderArray()

{

 var orderCookie=WM_readCookie("pinorder");

 // cookie=/name@price@qty/name@price@qty/...

 var orderInfo = orderCookie;



 // Get order array from url...

 // url= ?pintax=true&pinorder=/name@price@qyt/name@price@qty&shipping=1.50

 if (urlflag == 1)

 {

   orderCookie=unescape(location.search);

   var ndx = orderCookie.indexOf("pinorder=");

   if (ndx >= 0)

   {

     ndx += 9;

   }

 

   // get the start of the order items

   var orderInfo = orderCookie.substr(ndx); 

   

   // get tax selection

   var ndx = orderCookie.indexOf("pintax=true");

   if (ndx >= 0) {

     pintax = true;

   }



    // Not used:

   ndx = orderCookie.indexOf("shipmethod=");

   if (ndx >= 0) 

   {

     ndx += 11;

     //shipmethod = parseFloat(orderCookie.substr(ndx, 2) ); // "1.", "3.", "13"

     //shipmethod = parseInt(orderCookie.substr(ndx, 1) );

   }

 } 

 else 

 {

   // get pintax from cookie

   pintax = WM_readCookie("pintax"); // true or false

   if (pintax == "true") {

     pintax = true;

   }

 }

 var orderItems=orderInfo.split("/"); // array of order items



 var itemNum = 0;   // order items count

 var orderArray = new Array();

 

 for (var i = 0; i<orderItems.length; i++)

 {

   if (orderItems[i].length > 4) {

    //  name@price@qty  |  some angel@14.95@1

    var itemA = orderItems[i].split("@");  // 0name, 1price, 2qty

    if ((itemA[0] != "") && (itemA[1] != "")) // name, price

    {

      var thisitem = new pinOrder(itemA[0], itemA[1], itemA[2]);

      

      orderArray[itemNum] = thisitem;

      itemNum++;

    }

   }

 }

 return orderArray;

 

} 







/////////////////////////////////////////////////////////

// encode the cookie from the array of pin order objects

// cookie=/name@price@qty/name@price@qty/...

// item is not included if qty = 0

//////////////////////////////////////////////////////////

function bakeCookie(orderArray)

{

  var i;

  var newCookie = "";

  

  for (i = 0; i < orderArray.length; i++)

  {

     var thisitem = orderArray[i];

     if (thisitem.qty > 0)

     {

       var itemstr = "/"+thisitem.name + "@" + thisitem.price + "@" + thisitem.qty;       

       newCookie += itemstr;

     }

  }

  WM_setCookie("pinorder", newCookie);

}





function clearOrder()

{



  var ans=confirm("Are you sure you want to clear your order?");

  if (ans)

  {

   WM_killCookie('pinorder');

   //redraw();

   location.reload(true);

  }

}



//////////////////////////////////////////

// format a numeric value to 2 dec places

// Input: numeric, output: string

//////////////////////////////////////////

function formatAmount(numval)

{

    var strval = numval+"";  // convert num to string

    var retval = strval;

    

    var i=strval.indexOf(".");

    if (i == -1)  {

      // 10 -> 10.00

      retval = strval + ".00";

      return retval;

    }

    // 10.  10.0  10.12  10.1234

    var dec = strval.substring(i+1, strval.length);

    if (dec.length == 0) {

      retval = strval + "00";

      return retval;

    }

  

    if (dec.length == 1) {

      retval = strval + "0";

      return retval;

    }

    if (dec.length > 2) {

      var extra = dec.length - 2;

      retval = strval.substr(0,strval.length-extra);

    }

    return retval;

}





var orderItems;// global

var orderSubTotal = 0;

var totalBooks = 0;

var totalPins = 0;

var shipping = 0;



//////////////////////////////////////////////////

// printOrderForm

//////////////////////////////////////////////////

function printOrderForm(form, urlflag_)

{

  orderForm = form;

  

  

  urlflag = urlflag_;

  orderItems=getOrderArray();



  var val = WM_readCookie("shipmethod");

  if ((val == 1) || (val == 0))

    form.shipmethod.selectedIndex = val;



  var text = "<table  border=2  width='70%'>";

  text += "<tr><th>Item name</th><th>Item price</th><th>Quantity</th><th>Item total</th>";

  var i = 0;

  var orderTotal = 0;



  if (orderItems.length == 0) {

    document.write("<em>Your Shopping Cart is empty</em>");

    return;

  }



  // Print a line item for each item in the order

  for (i = 0; i < orderItems.length; i++)

  {

    var iname = i+1; // for field names to begin at 1

    var itemQty = orderItems[i].qty;

    var itemName = orderItems[i].name;

    var itemPrice = orderItems[i].price;

    

    var price = parseFloat(itemPrice);

    var qty = parseInt(itemQty);

    var itemTot = price*qty;

    orderTotal += itemTot;

    

    if (itemName.indexOf("book") == 0) {

      totalBooks += qty;

    }

    else {

      totalPins += qty;

    }



    text += "<input type=hidden  name='item"+ iname +"' value='"+itemName+"'>";

    text += "<tr>";

    text += "<td>" + itemName +"</td><td>$" + itemPrice + "</td>";

    text += "<td align=center>";

    

    

    if (urlflag == 1)

    {

      // qty is text+hidden fields

      text += "<input type=hidden  name='qty"+iname+"'  value='"+itemQty + "'>"+itemQty+"</td>";

    }

    else 

    {

      // qty is user input

      text += "<input type='text' name='qty"+iname+"'  size=3 maxlength=3 value='"+itemQty + "'></td>";

    }

    

    itemTot = formatAmount(itemTot);

    text += "<td>$<input type=text  name='itemtotal"+ iname +"' value='"+itemTot+"'></td>";

    text += "<input type=hidden  name='itemprice"+ iname +"' value='"+itemPrice+"'>";   

    text += "</tr>";

  }

  

  orderSubTotal = orderTotal;  // total for tax computation

  // TAX

  // Calc Tax if selected

  var istax="";

  var tax = 0;

  if (pintax==true)

  {

    istax = "checked";

    tax = calctax();

  }

  orderTotal += tax;

  tax = formatAmount(tax);

  //text += "<input type=hidden  name='tax'  value='"+tax+"'>";



  // TAX Row

  text += "<tr><th align=right colspan=3>";

  text += "Arizona Residents check here ";

  text += "<input type=checkbox name=arizona onClick='recalcTotal()'" + istax + ">";

  text += "(7.5% sales tax)&nbsp;&nbsp;</th><td>$";

  //text += tax

  text += "<input type=text  name='tax'  size=5 maxlength=5 value='"+tax+"'>";

  text += "</td></tr>";



  // Shipping

  

  text += "<tr><th align=right  colspan=3>Shipping&nbsp;&nbsp;";

  orderTotal += shipping;

  var shipping_s = formatAmount(shipping);

  text += "</th>";//<td>$" + shipping_s + "</td></tr>";

  text += "<td >$<input type=text  name='shipping' size=7 maxlength=7 value='"+shipping_s+"'></td>";



  // Order Total

  orderTotal = formatAmount(orderTotal);

  text += "<tr><th align=right colspan=3>Total&nbsp;&nbsp;</th><td>$";

  text += "<input type=text name='totalprice'  fabled size=7 maxlength=7  value='"+orderTotal+"'>";

  text += "</td></tr>";

  text += "</table>";

  //text += "<input type=hidden  name='totalprice' value='"+orderTotal+"'>";

  document.write(text);



  recalcTotal();

 return i; // number of items in list

}



function reclose()

{

  // reclose the doc to avoid dangling hourglass (IE only)

  var n=navigator.appVersion;

  if (n.indexOf('MSIE') >= 0) {

   document.write("closed");

   top.location.href="javascript:void(document.close())";

  }

}

 

/////////////////////////////////////////////////

// Calc tax  shipping...

/////////////////////////////////////////////////

function checktax()

{

  var box= orderForm.arizona;

  var is = box.checked;

  var tax = 0;

  

  if (is) {

    WM_setCookie("pintax","true"); 

    tax =calctax();



  } else {

    WM_setCookie("pintax","false");

  }

    orderForm.tax.value= formatAmount(tax);

    orderForm.tax.defaultValue= formatAmount(tax);

}



/////////////////////////////////////////////////

// calcShipping

// set global 'shipping' value

// Method: 0:normal($3 or $6)   1:priority($6)

//////////////////////////////////////////////////

function calcShipping(totalPins, totalBooks, method)

{

  var rate = 3.00; 

  if (method == 0)

  {

      if (totalPins > 3)

      {

    	rate = 6.00;

      }

  }

  

  if (method == 1)

  {

  	rate = 6.00;

  }

  

  //var np = Math.floor((totalPins - 1)/3)+1;  // per 3 pins (obsolete)

  var shipping = rate;

  

  shipping += totalBooks * 2; // $2 per book shipping



  orderForm.shipping.value = formatAmount(shipping);



  return shipping;

}



function calctax()

{

  var t = orderSubTotal * 0.075;

  return t;

 

}





// recalc tax and totals

function recalcTotal()

{

  orderSubTotal = 0;

  totalPins = 0;

  

  for (var i = 0; i < orderItems.length; i++)

  {

    var qtyName = "qty"+(i+1); // name of the qty field, start at 1

    //var newQty = eval("shoppingForm."+qtyName+".value");

    var newQty = orderForm.elements[qtyName].value;

    var iQty=0;

    var priceName = "itemtotal"+(i+1);

    

    var itemPrice = orderItems[i].price;

    var price = parseFloat(itemPrice);

    var qty = parseInt(newQty);

    totalPins += qty;

    

    var itemTot = price*qty;

    orderForm.elements[priceName].value = formatAmount(itemTot);

    orderSubTotal += itemTot;

   

    if (newQty != "")

    {

      // put new qty in if it's not 0 or blank  '

      iQty = parseInt(newQty);

      if (isNaN(iQty)) {

        alert("Item quantity "+ newQty +" is not a valid number");

        orderForm.elements[qtyName].value=0;

        orderForm.elements[qtyName].select();

        return;

      }

    }

    orderItems[i].qty = iQty;

  }



  //var list = orderForm.shipmethod;

  var ndx = orderForm.shipmethod.selectedIndex;

  var method = ndx; // 0;normal shipping   1:priority

  WM_setCookie("shipmethod",ndx); // save in cookie



  var shipping = calcShipping(totalPins, totalBooks, method);



  checktax();

  //alert(orderSubTotal);

  var total = orderSubTotal + parseFloat(orderForm.tax.value) + shipping;

  //alert(total);

  orderForm.totalprice.value = formatAmount(total);

  orderForm.totalprice.defaultValue = formatAmount(total);

}





////////////////////////////////////////////////////////////

// read new quantities entered by user and encode the cookie

////////////////////////////////////////////////////////////

function readQtys()

{

  for (var i = 0; i < orderItems.length; i++)

  {

    var qtyName = "qty"+(i+1); // name of the qty field, start at 1

    //var newQty = eval("shoppingForm."+qtyName+".value");

    var newQty = orderForm.elements[qtyName].value;

    var iQty=0;



    if (newQty != "")

    {

      // put new qty in if it's not 0 or blank  '

      iQty = parseInt(newQty);

      if (isNaN(iQty)) {

        alert("Item quantity "+ newQty +" is not a valid number");

        orderForm.elements[qtyName].select();

        return false;

      }

    }

    orderItems[i].qty = iQty;

  }



  bakeCookie(orderItems);

  return true;

}





function keepShopping()

{

  if (readQtys() ) {

   history.back();

  }

}



function redraw()

{

  if (readQtys())

  {

    //location.href="shoppingcart.htm";

    location.reload(true);

  }

}