[RESOLVED] Help Needed: How do I Update The Grand Total?

[coolcat]

I'm a newbie building invoice pages....

I have an invoice table & line items table

I am displaying several line items on a page

in the repeat region i have:
$thetotal = $thetotal + $row_list_cart['price_ext'];

so when it gets to the end - it is the grand total - but...

Q: how do i get things to update the master total field of inv table automatically - without the user clicking an extra button?

[dalecosp]

Why do you want to update a table while the user is still shopping?

$_SESSION exists for this.

[coolcat]

dalecosp;10904561 wrote:

Why do you want to update a table while the user is still shopping?

$_SESSION exists for this.

I see - i can just replace $thetotal with $_SESSION['thetotal'] and display it where I want temporarily - Thanks dalecosp