function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function GoCheckout() {
	window.location("https://builtinvacuum.com/retail/checkout.php?action=checkout");
}
		
function OpenFullWindow(inURL,inTitle,inParams) {
	window.open(inURL,inTitle,inParams);
}

function UpdateSummary()
{
	cForm = document.checkout;
	var shipping_rate;
	var tax;
	var total;
	
	subtotal = cForm.subtotal.value;
	
	ship_method = cForm.ship_method.value;
	switch (ship_method)
	{
		case "UPS GROUND":
			shipping_rate = cForm.ground_rate.value;
			break;
		case "UPS 3DAY SELECT":
			shipping_rate = "24.95";
			break;
		case "UPS NEXT SAVER":
			shipping_rate = "54.95";
			break;
	}
	
	if (cForm.bill_state.value != "" && cForm.ship_state.value == "") state = cForm.bill_state.value;
	else state = cForm.ship_state.value;
	
	if (state == "CA") tax = parseFloat(subtotal) * 0.0825;
	else tax = 0.00;
	
	total = parseFloat(subtotal) + parseFloat(shipping_rate) + parseFloat(tax);
	
	document.getElementById("shipping_rate").innerHTML = shipping_rate;
	document.getElementById("tax").innerHTML = tax.toFixed(2);
	document.getElementById("total").innerHTML = total.toFixed(2);
}

function ToggleShipping()
{
	cForm = document.checkout;
	cFn = cForm.ship_first_name;
	cLn = cForm.ship_last_name;
	cA1 = cForm.ship_address;
	cA2 = cForm.ship_address_l2;
	cCi = cForm.ship_city;
	cSt = cForm.ship_state;
	cZi = cForm.ship_zip;
	cPh = cForm.ship_phone;
	
	if (cForm.toggle_ship.checked)
	{
		cFn.value = cForm.bill_first_name.value;
		cLn.value = cForm.bill_last_name.value;
		cA1.value = cForm.bill_address.value;
		cA2.value = cForm.bill_address_l2.value;
		cCi.value = cForm.bill_city.value;
		cSt.value = cForm.bill_state.value;
		cZi.value = cForm.bill_zip.value;
		cPh.value = cForm.bill_phone.value;
	}
}

function VerifyCheckout() {
	var intFilled = 0;
	if (document.frmCheckout.txtShipFirstName.value.length > 0) {
		intFilled++;
	}
	if (document.frmCheckout.txtShipLastName.value.length > 0) {
		intFilled++;
	}
	if (document.frmCheckout.txtShipAddress1.value.length > 0) {
		intFilled++;
	}
	if (document.frmCheckout.txtShipCity.value.length > 0) {
		intFilled++;
	}
	if (document.frmCheckout.txtShipZipCode.value.length > 0) {
		intFilled++;
	}
	if (!(document.frmCheckout.selShipState.value == "NONE")) {
		intFilled++;
	}
	if ((intFilled > 0) && (intFilled < 6)) {
		alert ("If using a Shipping Address, all fields except company are required.");
		return false;
	}
	return true;
}