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how can sumbit value of form? got text field host result


example.

text field "a"
select list "b"

text field "c".value = a.value * b.value

the result , math works, when click sumbit button , doesn't send nothing!

if drop c, works fine.

any solution?

code of math , script adapted samples of ff, sample pizza.

here's scripst:


to list b:
function ff_b_action(element, action)
{
    switch (action) {
        case 'change':
            ff_wordcost_calculate();
            break;
        default:;
    }
}


to text field a:
function ff_a_action(element, action)
{
    switch (action) {
        case 'change':
            ff_wordcost_calculate();
            break;
        default:;
    }
}


to text field c:

function ff_c_validation(element, message)
{
    ff_wordcost_calculate();
    if (ff_getelementbyname('word').value=='') {
        ff_validationfocus('word');
        return message;
    } // if
    if (ff_getelementbyname('language').value=='') {
        ff_validationfocus('language');
        return message;
    }
    return '';
}



function ff_wordcost_calculate()
{
    var amount = 0;
    var numeroparole;
    var costolingua;
    var cost = 0;

    numeroparole = ff_getelementbyname('word').value;
    costolingua = ff_getelementbyname('language').value;
   
    if (numeroparole!= '') {
      numeroparole = parseint(numeroparole);
      cost = parseint(numeroparole)*costolingua;
    }

    ff_getelementbyname('wordcost_total').value = math.round(cost)/100;
    return ff_getelementbyname('wordcost_total').value;
} // ff_wordcost_calculate