Bootstrap DateTimePicker pairs for duration

bootstrap-datetimepickers-pairs.js

// http://eonasdan.github.io/bootstrap-datetimepicker

// setup a pair of datepickers
// Author: Guy Hughes
// Date: 2015-07-11
function addDatePickerPair(dpStart,dpEnd) {
    // dpStart,  dpEnd = /\#[A-z0-9]+/
    // parameters are an ID for a single element
    $(dpStart).on("dp.change", function (e) {
        $(dpEnd).data("DateTimePicker").minDate(e.date);
    });
    $(dpEnd).on("dp.change", function (e) {
        $(dpStart).data("DateTimePicker").maxDate(e.date);
    });
}