function computeForm(form) {
    var pmt1 = form.payment.value;
    var prin1 = form.principal.value;
    var intPort1 = 0;
    var prinPort1 = 0;
    var accumInt1 = 0;
    var accumPrin1 = 0;
    var i1 = form.intRate.value;
    if (i1 > 1.0) {
        i1 = i1 / 100.0;
        form.intRate.value = i1;
    }
    var i1  = i1  / 12;
    var i2 = form.intRate2.value;
       if (i2 > 1.0) {
           i2 = i2 / 100.0;
           form.intRate2.value = i2;
       }
       var i2  = i2  / 12;
    var count1 = 0;
    while(prin1 > 0) {
        intPort1 = prin1 * i1;
        prinPort1 = pmt1 - intPort1;
        prin1 = prin1 - prinPort1;
        accumPrin1 = accumPrin1 + prinPort1;
        accumInt1 = accumInt1 + intPort1;
        count1 = count1 + 1;
        if(count1 > 600) {break; } else {continue; }
       }
    form.origInt.value = "$" + parseInt(accumInt1,10);
    var pow = 1;
    for (var j = 0; j < form.nper2.value *12; j++)
        pow = pow * (1 + i2);
    var fpayment2 = (form.principal.value * pow * i2) / (pow - 1);
    form.payment2.value = "$" + parseInt(fpayment2,10) + "." + parseInt(fpayment2 % 1 * 100,10);
   var fmoSave = form.payment.value - fpayment2;
   form.moSave.value = "$" + parseInt(fmoSave,10) + "." + parseInt(fmoSave % 1 *100,10);
		var ftotInt2 = (fpayment2 * form.nper2.value *12)
    - form.principal.value;
   form.totInt2.value = "$" + parseInt(ftotInt2,10);
   var fintSave = accumInt1 - ftotInt2;
    form.intSave.value = "$" + parseInt(fintSave,10);
    form.closeMo.value = parseInt(form.closingCost.value / fmoSave,10);
   var fnetSave = fintSave - form.closingCost.value;
   form.netSave.value = "$" + parseInt(fnetSave,10);
}

function clearForm(form)
{
    form.principal.value = "";
    form.payment.value = "";
    form.intRate.value = "";
    form.intRate2.value = "";
    form.nper2.value = "";
    form.closingCost.value = "";
    form.payment2.value = "";
    form.moSave.value = "";
    form.closeMo.value = "";
    form.intSave.value = "";
    form.origInt.value = "";
    form.netSave.value = "";
    form.totInt2.value = "";
}