var lengthAdjust = "1";
var priceAdjust = "2";
 
function adjNec6(len,pri,op) {
  var nLen = len;
  var nPri = pri;
  var oper = op;
  var nec6min = 16;
  var nec6max = 24;
  if (oper == "sub" && document.nec6.necLen6.value > nec6min) {
    nLen = eval(nLen) - eval(lengthAdjust);
    nPri = eval(nPri) - eval(priceAdjust);
    nPri += '';
    if (nPri.length == 4) {
      nPri = nPri + "0";
    }
  }
  if (oper == "add" && document.nec6.necLen6.value < nec6max) {
    nLen = eval(nLen) + eval(lengthAdjust);
    nPri = eval(nPri) + eval(priceAdjust);
    nPri += '';
    if (nPri.length == 4) {
      nPri = nPri + "0";
    }
  }      
  document.nec6.necLen6.value = nLen;
  document.getElementById("necLen6").innerHTML = nLen;
  document.nec6.necPrice6.value = roundNumber(nPri,2);
  document.getElementById("necPrice6").innerHTML = roundNumber(nPri,2);
  updateNec6PaymentButton();
}

function updateNec6PaymentButton() {
  var amount_nec6 = window.document.nec6.necPrice6.value;
  var length_nec6 = window.document.nec6.necLen6.value + "in.";
  var itemType_nec6 = "";
  var finalDesign_nec6 = "";
  document.getElementById("purchaseButton_nec6").innerHTML = "<a href=\"javascript:void(0)\" onclick=\"window.open('https://www.paypal.com/cart/add=1&amp;business=blackmtn%40xmission.com&amp;item_name=Gemstones of the Seven Chakras Necklace:%20+"+length_nec6+"+"+itemType_nec6+"+"+finalDesign_nec6+"&amp;amount="+amount_nec6+"&amp;return=http%3A//www.blackmountainbead.com&amp;cancel_return=http%3A//www.blackmountainbead.com','cartwin','width=750,height=560')\"><img src=\"https://www.paypal.com//en_US/i/btn/x-click-but22.gif\" border=\"0\" width=\"87\" height=\"23\" alt=\"PayPal\"></a>";
}

function adjBra6(len,pri,op) {
  var nLen = len;
  var nPri = pri;
  var oper = op;
  var bra6min = 5;
  var bra6max = 10;
  if (oper == "sub" && document.bra6.braLen6.value > bra6min) {
    nLen = eval(nLen) - eval(lengthAdjust);
    nPri = eval(nPri) - eval(priceAdjust);
    nPri += '';
    if (nPri.length == 4) {
      nPri = nPri + "0";
    }
  }
  if (oper == "add" && document.bra6.braLen6.value < bra6max) {
    nLen = eval(nLen) + eval(lengthAdjust);
    nPri = eval(nPri) + eval(priceAdjust);
    nPri += '';
    if (nPri.length == 4) {
      nPri = nPri + "0";
    }
  }      
  document.bra6.braLen6.value = nLen;
  document.getElementById("braLen6").innerHTML = nLen;
  document.bra6.braPrice6.value = roundNumber(nPri,2);
  document.getElementById("braPrice6").innerHTML = roundNumber(nPri,2);
  updateBra6PaymentButton();
}

function updateBra6PaymentButton() {
  var amount_bra6 = window.document.bra6.braPrice6.value;
  var length_bra6 = window.document.bra6.braLen6.value + "in.";
  var itemType_bra6 = "";
  var finalDesign_bra6 = "";
  document.getElementById("purchaseButton_bra6").innerHTML = "<a href=\"javascript:void(0)\" onclick=\"window.open('https://www.paypal.com/cart/add=1&amp;business=blackmtn%40xmission.com&amp;item_name=Gemstones of the Seven Chakras Necklace:%20+"+length_bra6+"+"+itemType_bra6+"+"+finalDesign_bra6+"&amp;amount="+amount_bra6+"&amp;return=http%3A//www.blackmountainbead.com&amp;cancel_return=http%3A//www.blackmountainbead.com','cartwin','width=750,height=560')\"><img src=\"https://www.paypal.com//en_US/i/btn/x-click-but22.gif\" border=\"0\" width=\"87\" height=\"23\" alt=\"PayPal\"></a>";
}

function start() {
	isLoaded = true;
	startup();
}

winLoaded = false;

function startup() {
	winLoaded = true;
}

function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}