()
| 560 | var html = document.querySelector('html'); |
| 561 | |
| 562 | function next() { |
| 563 | var nextButton = document.querySelector('.nav-chapters.next'); |
| 564 | if (nextButton) { |
| 565 | window.location.href = nextButton.href; |
| 566 | } |
| 567 | } |
| 568 | function prev() { |
| 569 | var previousButton = document.querySelector('.nav-chapters.previous'); |
| 570 | if (previousButton) { |