XML by Example

2. While modifying the document, it is easy to attach a style sheet to it.

The

addHeader() function appends a small header at the beginning of

the document with a style sheet and a comment.

function addHeader(document,rate)

{

var comment = document.createComment(

“Rate used for this conversion: “ + rate),

stylesheet = document.createProcessingInstruction(

“xml-stylesheet”,

“href=\”prices.css\” type=\”text/css\””),

topLevel = document.documentElement;

document.insertBefore(comment,topLevel);

document.insertBefore(stylesheet,comment);

}

To attach a style sheet, you can simply create a processing instruction.

addHeader() uses insertBefore() to control where ...