Properties and methods of the document object

The following table lists the new properties and methods of the document object in Dreamweaver, along with their return values (with explanations, where appropriate). A bullet (·) marks read-only properties.

Property or method	Return value and explanation
`nodeType ·`	`Node.DOCUMENT_NODE`
`parentNode ·`	`null`
`parentWindow ·`	The JavaScript object corresponding to the document's parent window. (This property is not included in DOM Level 1; however, it is supported by IE 4.0.)
`childNodes ·`	A `nodelist` containing all the immediate children of the `document` object. Typically the document will have a single child: the `HTML` object.
`documentElement ·`	The JavaScript object corresponding 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 corresponding 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 instead.
`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). Provides similar functionality to the `dreamweaver.getObjectTags()` function. If the `tag` argument is `LAYER`, the function returns all `LAYER` and `ILAYER` tags and all absolutely positioned `DIV` and `SPAN` tags. If the `tag` argument is `INPUT`, the function returns all form elements. (For this shortcut to work properly, all form field names must begin with a letter.)
`hasChildNodes()`	`TRUE`