Change this line:
sum += a[i].value;
sum += Number(a[i].value);
Thank You So Much!!!
Now, do you have any suggestions how to write that as an "If" statement so that the "US Total Paid by Check or MO" field stays blank unless any of the Sub-Total fields have amounts in them?
At the end of its calculation script add this line:
if (event.value==0) event.value = "";
You are the best. I am so glad to have this resource. I have learned so much with you. Thank you so much!!!!