Try this:
The HTML codes should look like this:
function add() {
var total = 0;
var thisform = document.forms[0];
for (i=0;i<=thisform.elements["field[]"].length;i++) {
if (!isNaN(thisform.elements["field[]"].value) total +=
thisform.elements["field[]"].value;
}
thisform.total
I will try your method.
I have found a way to solved this problem of mine.
I have four fields I may or may not choose to fill up one out of the four
fields, or I might filled up all of them.
So when I leave one or two fields empty, and add all the value up, I will
get NaN.
For those empty fields,
