Hi all - hoping someone can help me with this.  I have some calculations that are done to total a form (then that amount, which appears in a read-only field is passed to PayPal).  The problem is that when someone accidentally hits enter on one of the required fields before completing the form, the form reloads and the calculations are lost and no total is transferred to PayPal.

I've found that if I make the total field not read-only that it works fine, but I don't want users to be able to enter their own totals in the box.

Any suggestions?  Thanks!

David - thanks, but what if the user actually hits Submit, then the form reloads because there were some required fields not completed - how do I get the calculation to retotal itself automatically in a read-only field?