code: function keyCombinationInList(keyPressEvent, lookupList) {
        var found = false;
        $.each(lookupList, function (index, keyCombination) {
            if (typeof (keyCombination) === 'number' && keyPressEvent.which === keyCombination) {
                found = true;
                return false;
            }
  
            if (keyPressEvent.which === keyCombination.which) {
                var alt = !keyCombination.hasOwnProperty('altKey') || keyPressEvent.altKey === keyCombination.altKey,
                    shift = !keyCombination.hasOwnProperty('shiftKey') || keyPressEvent.shiftKey === keyCombination.shiftKey,
                    ctrl = !keyCombination.hasOwnProperty('ctrlKey') || keyPressEvent.ctrlKey === keyCombination.ctrlKey;
                if (alt && shift && ctrl) {
                    found = true;
                    return false;
                }
            }
        });
  
        return found;
    }
docs: Returns boolean indicates whether user has pressed an expected key combination.
  @param object keyPressEvent: JavaScript event object, refer
  http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
  @param object lookupList: expected key combinations, as in:
  [13, {which: 188, shiftKey: true}]