Question

In my efforts to solve a rounding problem I’ve broken the dynamic updating of totals that was previously working fine.

If you look at this JSFiddle:

http://jsfiddle.net/fmdataweb/73Jzc/1/

you will see as you change the select menu and add new rows and data the totals for moderate and high update dynamically. If you change a selection from high to moderate they continue to update.

I updated the script to fix a rounding issue in the totals which you can see at this JSFiddle:

http://jsfiddle.net/73Jzc/2/

All I did was change:

$('#textfield6').val(tot.moderate);
$('#textfield7').val( tot.high );

to:

$('#textfield6').val(tot.moderate.toFixed(1));
$('#textfield7').val( tot.high.toFixed(1) );

and that appears to have stopped the dynamic totals from updating and I’m not sure why.

Answer 1

define tot with default-values for high and moderate:

var tot = {high:0,moderate:0}; 

otherwise you will get an error when either high or moderate isn’t selected in any list