Predefined JavaScript arrays
You can reference elements by id, name or index.

Object	Property	Description
document	anchors	Reflects a document's `<A>` tags that contain a `NAME` attribute in source order
	applets	Reflects a document's `<APPLET>` tags in source order
	embeds	Reflects a document's `<EMBED>` tags in source order
	forms	Reflects a document's `<FORM>` tags in source order
	images	Reflects a document's `<IMG>` tags in source order (images created with the `Image()` constructor are not included in the `images` array)
	layers	Reflects a document's `<LAYER>` and `<ILAYER>` tags in source order
	links	Reflects a document's `<AREA HREF="...">` tags, `<A HREF="">` tags, and `Link` objects created with the `link` method in source order
Form	elements	Reflects a form's elements (such as `Checkbox`, `Radio`, and `Text` objects) in source order
Function	arguments	Reflects the arguments to a function
navigator	mimeTypes	Reflects all the MIME types supported by the client (either internally, via helper applications, or by plug-ins)
navigator	plugins	Reflects all the plug-ins installed on the client in source order
select	options	Reflects the options in a `Select` object (`<OPTION>` tags) in source order
window	frames	Reflects all the `<FRAME>` tags in a window containing a `<FRAMESET>` tag in source order
window	history	Reflects a window's history entries