Adobe Extending Dreamweaver CS4 Instrukcja Użytkownika Pobierz pdf (Strona 106)

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EXTENDING DREAMWEAVER CS4

The Dreamweaver Document Object Model

Property or method Return value

nodeType • Node.DOCUMENT_NODE

parentNode • null

parentWindow • The JavaScript object that corresponds to the

document’s parent window. (This property is defined in

the Microsoft Internet Explorer 4.0 DOM, but is not part

of DOM Level 1 or 2.)

childNodes • A NodeList that contains all the immediate children of

the

document object. Typically the document has a

single child, the

HTML object.

previousSibling • null

nextSibling • null

documentElement • The JavaScript object that corresponds to the html tag.

This property is shorthand for getting the value of

document.childNodes and extracting the HTML tag

from the

NodeList.

body • The JavaScript object that corresponds to the body tag.

This property is shorthand for calling

document.documentElement.childNodes and

extracting the

body tag from the NodeList. For

frameset documents, this property returns the node for

the outermost frameset.

URL • The file://URL for the document or, if the file has not

been saved, an empty string.

getElementsByTagName(tagName) A NodeList that can be used to step through tags of

type

tagName (for example, img, div, and so on).

If the tagName argument is “LAYER”, the function

returns all

LAYER and ILAYER tags and all absolutely

positioned elements.

If the tagName argument is “INPUT”, the function

returns all form elements. (If a name attribute is

specified for one or more

tagName objects, it must

begin with a letter, which the HTML 4.01 specification

requires, or the length of the array that this function

returns is incorrect.)

getElementsById(Id) Gets the element node with the specified id. Where id

is a string containing the ID of the element to get.

var dom = dw.getDocumentDOM(); var contObj

= dom.getElementById('content');

alert("The element with the id 'content'

is a " + contObj.tagName);

getElementsByAttributeName(attrName) A NodeList that can be used to step through elements

with an attribute

attrName (for example, all elements

with the attribute "for"). Not part of DOM Level 1 or 2.

getElementById(id) The HTML element with the specified ID.

hasChildNodes() true

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