I have this page I am editing for someone. The page uses Javascript to update order amounts and totals.

I have been attempting to add a shipping calculator. Each item has a different shipping amount. For example stickers cost $1, shirts are $5, etc.

I commented the code with a short description and the date. All my work was done between 8/9 and today.

The problem with it now is the shipping cost and grand total do not display at the bottom, but the totals for each category (hats, shirts, stickers, etc) works fine. I was hoping someone could help me get it working. I am not sure what I am doing wrong, and I don't mess around coding Javascript as much as I do other languages.

If you need any more info from me just let me know.

Thanks in advance!

Here is the file. It is an html page that is in a zip file so that I could upload it to this site.

When i execute your page, its throws java script error like

Error: document.ps_cart.cart_subtotal is undefined

in the function updateTotals
You have called updateShipping inside which you have called updateOverall,

Neither of the functions working after that error..

cart_subtotal is not found in the document, that what the error tells.

Correct the error, it will work..

If you are working with javascript, use Firefox error console.
It will show if any error occurs.
It is in Tools > Error Console you can use short key -> Ctrl +Shift + j

Got it working now! Thanks for your help. Looking back it was a pretty obvious fix, I just needed a little push in the right direction.

Thanks again!

Ok now I am having a differnet problem with the script. I got the shipping totals to calculate correctly, but I am having trouble sending the shipping amount to Paypal.

I looked at Paypal's website on how to set this up. They had an option for a handling charge and I tried setting that code up with the shipping total variable thrown in. That didn't work.

The next thing I tried was adding the shipping cost as a product using the variable I created for the shipping cost. This isn't working either. I changed the code a few times but it seems like nothing is getting sent to Paypal.

I've attached the page to this post. The code for creating shipping cost for an item is:

document.ps_cart.item_name_22.value = "Shipping Cost";
document.ps_cart.item_number_22.value = "shipping";
document.ps_cart.amount_22.value = Number(document.ps_cart.paypalShipping.value);
document.ps_cart.quantity_22.value = Number(1);

and you can see near the bottom of the page code to send this to Paypal. I don't know what I am doing wrong, or if it is even possible to do it this way. Hopefully someone can help me.