## JS
```
$("#government-cesspool-detail-Longness").add($("#government-cesspool-detail-Width"))
.add($("#government-cesspool-detail-BDepth")).add($("#government-cesspool-detail-Cubage")).on("click", function () {
var Longness = $("#government-cesspool-detail-Longness").val();
var Width = $("#government-cesspool-detail-Width").val();
var BDepth = $("#government-cesspool-detail-BDepth").val();
$("#government-cesspool-detail-Cubage").val(Longness * Width * BDepth);
});
```
