new Insertion.Before(element, html)

Inserts the html into the page as the previous sibling of element.

As of Prototype 1.6, the complete Insertion class has been deprecated in favor of Element#insert.

Note that if the inserted HTML contains any <script> tag, these will be automatically evaluated after the insertion (Insertion.Before internally calls String#evalScripts).

Example

Original HTML

  <div>
    <p id="modern_major_general">I am the very model of a modern major general.</p>
  </div>

JavaScript

  new Insertion.Before('modern_major_general', "<p>In short, in all things vegetable, animal, and mineral...</p>");

Resulting HTML

  <div>
    <p>In short, in all things vegetable, animal, and mineral...</p>
    <p id="modern_major_general">I am the very model of a modern major general.</p>
  </div>