Redirect to home page... how?

ZenCart 1.3.9H

In a customized shopping-cart template i'd like to redirect users to the home page after all the products are removed from the shopping cart.
How can i do it?

Silly question - Why?

Because i don't know how to do it... do you know which are the instruction to recreate the home page?
I have a custom template which has some errors on it, and the default template brake the page.

Do you want to redirect the customer after they complete a purchase? If they empty their cart manually? What is the goal of redirecting them?

The problem is that there is a bug with shopping-cart template.
When the customer empty the shopping cart, the structure of the page is not correctly rebuilt, so i'd like instead that when the cart is empty (because customer has removed every article from the cart) he has been redirected to the homepage (or the home page is rebuilt)
Now i can't understand exactly if there is a call in zencart for loading the home page.

Something like

If products >0 then {
... }
else {
go to homepage }

I hope it's clear for you.

It would be much better to fix whatever template problem there is instead of redirecting to a different page - what is the URL?