## Purpose

Permits hidden notes which can be turned on or off to be inserted into the text flow. For example, whereas in class a Teaching Machine is likely to be run live, an instructor may want to provide specialised notes for students pointing out what to look for when they run the example themselves. Such notes are a distraction in the lecture and so are turned off.

## Available Functions

startNote()
endNote()

### Arguments

Neither function takes any arguments

### Return

Nothing is returned

### Action

All HTML between the start and the end of the hidden note can be turned on or off under the control of the show/hide button on the WebWriter bar. Hidden note state is also affected by the viewing mode (lecture/notes).

### Snippet

The two functions act naturally together as a wrap snippet.

## Example

A wrap snippet has been used to mark the following entry as a note:

Most good HTML editors provide snippet support. In the case of a wrap snippet the author just selects the section to be wrapped and inserts the snippet. Begin and end snippets are inserted before and after the selection automatically.

Note that hiding the note doesn't just blank it out—it removes it from the layout flow completely.

Hidden notes are controlled by the `.hiddenNote` style in the stylesheets.