// jQuery functions:
$(document).ready(function() {	
       // Get hidden value
	var Price = parseFloat($('#basePrice').val());
	var Shipping = '';
	var num = $('#number').val();
	var basePrice = 0 ; // num * Price;
	var gst = .05;
	var taxRate = 0;


// Adjust price for bulk discounts
       if( num < 2) {
               // Do nothing
       } else if(num < 3) {
		Price = Price - .45;
	} else if (num < 21 ) {
		Price = Price - 1.0;
	} else if (num < 41 ) {
		Price = Price - 2.0;
	} else {
		Price = Price - 3.00;
	}

	var unitPrice = Price;
	unitPrice = unitPrice.toFixed(2);
	$('#unitPrice').html(unitPrice);

	// Show price after discount
	basePrice = Price * num;

	basePrice = basePrice.toFixed(2);
	$('#baseCost').html(basePrice);

	

		// Fall trhough shipping filter
		if(num < 3) {
			Shipping = 4.00;
		} else if (num < 5) {
			Shipping = 8.00;
		} else if (num < 10) {
			Shipping = 10.00;
		} else if (num < 30) {
			Shipping = 15.00;
		} else if (num < 50) {
			Shipping = 0.00;
		} else if (num < 100) {
			Shipping = 0.00;
		} else if (num < 200) {
			Shipping = 0.00;
		} else {
			alert('Please contact Cool Heads Publishing for orders of 200 books or more.');
                        num = 1;
                        $('#number').val('1');
                        location.reload(); 
		}

		var country = $("input[name='country']:checked").val();
		if(country == 'US') {
			Shipping = Shipping * 1.25;
		} else if (country == 'Intl') {
			Shipping = Shipping * 1.50;
		} else {
                        Shipping = Shipping * 1;
               }

		fPrice = (Price * num) + Shipping;
		Shipping = Shipping.toFixed(2);
		$('#shipping_cost').html(Shipping);

		if(country == 'Cdn') {
			taxRate = gst;
		} else {
			taxRate = 0;
		}

	       var tax = taxRate * fPrice;
               var taxPayable = tax.toFixed(2);
               $('#taxPayable').html(taxPayable);

        fPrice = fPrice + tax;
        fPrice = fPrice.toFixed(2);
      	$('#full_price').html(fPrice);


        	// Set PayPal form
        	var pp_Price = Price.toFixed(2);
        	$('#amount').val(pp_Price);
        	$('#quantity').val(num);
        	$('#shipping').val(Shipping);
        	$('#tax').val(taxPayable);

            
        
		

// This section is run after a keyup in Number box
 $("input[name='country']").click( function() {
  $('#number').trigger('keyup');
  });

	$('#number').keyup(function(){

		var num = $(this).val();
		var numLen = num.length;
		var pattern = '/[^\d]+/';
		if(numLen > 0) {
			if(! IsNumeric(num)) {
				alert('Please enter a number');
				num = num.substring(0,numLen-1);
				$(this).val(num) ;
				return;
			}
var Price = parseFloat($('#basePrice').val());

		// Adjust price for bulk discounts
		if( num < 2) {
		// Do nothing
		} else if(num < 3) {
			Price = Price - .45;
		} else if (num < 21 ) {
			Price = Price - 1.0;
		} else if (num < 41 ) {
			Price = Price - 2.0;
		} else {
			Price = Price - 3.00;
		}

		var unitPrice = Price;
		unitPrice = unitPrice.toFixed(2);
		$('#unitPrice').html(unitPrice);

		// Fall trhough shipping filter
		if(num < 3) {
			Shipping = 4.00;
		} else if (num < 5) {
			Shipping = 8.00;
		} else if (num < 10) {
			Shipping = 10.00;
		} else if (num < 30) {
			Shipping = 15.00;
		} else if (num < 50) {
			Shipping = 0.00;
		} else if (num < 100) {
			Shipping = 0.00;
		} else if (num < 200) {
			Shipping = 0.00;
		} else {
			alert('Please contact Cool Heads Publishing for orders of 200 books or more.');
                        num = 1;
                        $('#number').val('1');
                        location.reload(); 
		}


		var country = $("input[name='country']:checked").val();
		if(country == 'US') {
			Shipping = Shipping * 1.25;
		} else if (country == 'Intl') {
			Shipping = Shipping * 1.50;
		}  else {
                        Shipping = Shipping * 1;
               }

                // Before tax
		fPrice = (num * Price) + Shipping;

		// Show unit cost 
		cost = (num * Price);
		cost = cost.toFixed(2);
		$('#baseCost').html(cost);

                // Shipping
		Shipping = Shipping.toFixed(2);
		$('#shipping_cost').html(Shipping);

		if(country == 'Cdn') {
			taxRate = gst;
		} else {
			taxRate = 0;
		}

                // Add tax
	        tax = taxRate * fPrice;
                taxPayable = tax.toFixed(2);
                $('#taxPayable').html(taxPayable);
		
		// Calculate Full Price
		fPrice = fPrice + tax;
		fPrice = fPrice.toFixed(2);
		$('#full_price').html(fPrice);

		
		}
      	// Set PayPal form
        	var pp_Price = Price.toFixed(2);
        	$('#amount').val(pp_Price);
        	$('#quantity').val(num);
        	$('#shipping').val(Shipping);
        	$('#tax').val(taxPayable);
 
	})


	
})


// Housekeeping functions
// http://www.codetoad.com/javascript/isnumeric.asp
function IsNumeric(sText) {
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;
 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
}