Prototype and Scriptaculous: Taking the Pain out of JavaScript

3.4. Manipulating Documents

Prototype provides utilities for manipulating documents via the Insertion objects.

Insertion.Before	Inserts content before an element
Insertion.After	Inserts content after an element
Insertion.Top	Inserts content at the top of an element
Insertion.Bottom	Inserts content at the bottom of an element

These are called via:

new Insertion.function('id',content);

For example, the code:

<span id='result'>The result is:</span>
<a href="javascript:void (new Insertion.Bottom('result','100'))">click for result</a>

results in the text The result is:100 being displayed.