Try out Jquery expressions
value1 =
10
value2 =
20
value3 =
30
$('#value1') = 10 =
must be 10
$('.values') = 10,20,30 =
must be 10,20,30
+: $('.values') = 60 =
must be 10 + 20 + 30
+: 100 $('.values') = 160 =
must be 100 + 10 + 20 + 30