How to Navigate this Book Online

Table of Contents

Every page of this book has a button labeled CONTENTS. In most browsers, this button will be in the upper left corner. You can click anywhere on that button to show the book’s table of contents. Clicking the button again hides the table of contents.

In the table of contents, you can click on the title of a chapter to navigate to the beginning of that chapter.

You can also click on the “+” in the table of contents to see the chapter’s sections and navigate directly to that place in the book.

Turning a Page

If you’re reading on a larger screen, look at the bottom of the page. There is a button in the lower right corner labeled “Next →” that you can click to move forward, and another button in the lower left corner labeled “← Previous” that you can click to move backward.

Reading on Smaller Screens

On smaller screens, like phones and tablets, the CONTENTS are at the top of the page. Look for the Previous and Next buttons at either the top or bottom of the page.

document.addEventListener(“DOMContentLoaded”, function() {
var hiddenNumber = document.querySelector(‘.oor-part-no’).textContent;
var partNumberElement = document.createElement(‘span’);
partNumberElement.textContent = hiddenNumber;
partNumberElement.className = ‘oor-part-number’;
var titleElement = document.querySelector(‘.entry-title’);
titleElement.insertBefore(partNumberElement, titleElement.firstChild);
});