Appendix D: ECMAScript Language Binding

This appendix contains the complete ECMAScript [ECMAScript] binding for the Level 2 Document Object Model HTML definitions.

Note: Exceptions handling is only supported by ECMAScript implementation conformant with the Standard ECMA-262 3rd. Edition ([ECMAScript]).

Objects that implement the HTMLCollection interface:

Properties of objects that implement the HTMLCollection interface:

length: This read-only property is a Number.

Functions of objects that implement the HTMLCollection interface:

item(index): This function returns an object that implements the Node interface.
The index parameter is a Number.
Note: This object can also be dereferenced using square bracket notation (e.g. obj[1]). Dereferencing with an integer index is equivalent to invoking the item function with that index.
namedItem(name): This function returns an object that implements the Node interface.
The name parameter is a String.
Note: This object can also be dereferenced using square bracket notation (e.g. obj["foo"]). Dereferencing using a string index is equivalent to invoking the namedItem function with that index.

Objects that implement the HTMLOptionsCollection interface:

Properties of objects that implement the HTMLOptionsCollection interface:

length: This property is a Number and can raise an object that implements DOMException interface on setting.

Functions of objects that implement the HTMLOptionsCollection interface:

item(index): This function returns an object that implements the Node interface.
The index parameter is a Number.
Note: This object can also be dereferenced using square bracket notation (e.g. obj[1]). Dereferencing with an integer index is equivalent to invoking the item function with that index.
namedItem(name): This function returns an object that implements the Node interface.
The name parameter is a String.
Note: This object can also be dereferenced using square bracket notation (e.g. obj["foo"]). Dereferencing using a string index is equivalent to invoking the namedItem function with that index.

Objects that implement the HTMLDocument interface:

Objects that implement the HTMLDocument interface have all properties and functions of the Document interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLDocument interface:

title: This property is a String.
referrer: This read-only property is a String.
domain: This read-only property is a String.
URL: This read-only property is a String.
body: This property is an object that implements the HTMLElement interface.
images: This read-only property is an object that implements the HTMLCollection interface.
applets: This read-only property is an object that implements the HTMLCollection interface.
links: This read-only property is an object that implements the HTMLCollection interface.
forms: This read-only property is an object that implements the HTMLCollection interface.
anchors: This read-only property is an object that implements the HTMLCollection interface.
cookie: This property is a String and can raise an object that implements DOMException interface on setting.

Functions of objects that implement the HTMLDocument interface:

open(): This function has no return value.
close(): This function has no return value.
write(text): This function has no return value.
The text parameter is a String.
writeln(text): This function has no return value.
The text parameter is a String.
getElementsByName(elementName): This function returns an object that implements the NodeList interface.
The elementName parameter is a String.

Objects that implement the HTMLElement interface:

Objects that implement the HTMLElement interface have all properties and functions of the Element interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLElement interface:

id: This property is a String.
title: This property is a String.
lang: This property is a String.
dir: This property is a String.
className: This property is a String.

Objects that implement the HTMLHtmlElement interface:

Objects that implement the HTMLHtmlElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLHtmlElement interface:

version: This property is a String.

Objects that implement the HTMLHeadElement interface:

Objects that implement the HTMLHeadElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLHeadElement interface:

profile: This property is a String.

Objects that implement the HTMLLinkElement interface:

Objects that implement the HTMLLinkElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLLinkElement interface:

disabled: This property is a Boolean.
charset: This property is a String.
href: This property is a String.
hreflang: This property is a String.
media: This property is a String.
rel: This property is a String.
rev: This property is a String.
target: This property is a String.
type: This property is a String.

Objects that implement the HTMLTitleElement interface:

Objects that implement the HTMLTitleElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTitleElement interface:

text: This property is a String.

Objects that implement the HTMLMetaElement interface:

Objects that implement the HTMLMetaElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLMetaElement interface:

content: This property is a String.
httpEquiv: This property is a String.
name: This property is a String.
scheme: This property is a String.

Objects that implement the HTMLBaseElement interface:

Objects that implement the HTMLBaseElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLBaseElement interface:

href: This property is a String.
target: This property is a String.

Objects that implement the HTMLIsIndexElement interface:

Objects that implement the HTMLIsIndexElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLIsIndexElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
prompt: This property is a String.

Objects that implement the HTMLStyleElement interface:

Objects that implement the HTMLStyleElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLStyleElement interface:

disabled: This property is a Boolean.
media: This property is a String.
type: This property is a String.

Objects that implement the HTMLBodyElement interface:

Objects that implement the HTMLBodyElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLBodyElement interface:

aLink: This property is a String.
background: This property is a String.
bgColor: This property is a String.
link: This property is a String.
text: This property is a String.
vLink: This property is a String.

Objects that implement the HTMLFormElement interface:

Objects that implement the HTMLFormElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLFormElement interface:

elements: This read-only property is an object that implements the HTMLCollection interface.
length: This read-only property is a Number.
name: This property is a String.
acceptCharset: This property is a String.
action: This property is a String.
enctype: This property is a String.
method: This property is a String.
target: This property is a String.

Functions of objects that implement the HTMLFormElement interface:

submit(): This function has no return value.
reset(): This function has no return value.

Objects that implement the HTMLSelectElement interface:

Objects that implement the HTMLSelectElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLSelectElement interface:

type: This read-only property is a String.
selectedIndex: This property is a Number.
value: This property is a String.
length: This property is a Number and can raise an object that implements DOMException interface on setting.
form: This read-only property is an object that implements the HTMLFormElement interface.
options: This read-only property is an object that implements the HTMLOptionsCollection interface.
disabled: This property is a Boolean.
multiple: This property is a Boolean.
name: This property is a String.
size: This property is a Number.
tabIndex: This property is a Number.

Functions of objects that implement the HTMLSelectElement interface:

add(element, before): This function has no return value.
The element parameter is an object that implements the HTMLElement interface.
The before parameter is an object that implements the HTMLElement interface.
This function can raise an object that implements the DOMException interface.
remove(index): This function has no return value.
The index parameter is a Number.
blur(): This function has no return value.
focus(): This function has no return value.

Objects that implement the HTMLOptGroupElement interface:

Objects that implement the HTMLOptGroupElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLOptGroupElement interface:

disabled: This property is a Boolean.
label: This property is a String.

Objects that implement the HTMLOptionElement interface:

Objects that implement the HTMLOptionElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLOptionElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
defaultSelected: This property is a Boolean.
text: This read-only property is a String.
index: This read-only property is a Number.
disabled: This property is a Boolean.
label: This property is a String.
selected: This property is a Boolean.
value: This property is a String.

Objects that implement the HTMLInputElement interface:

Objects that implement the HTMLInputElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLInputElement interface:

defaultValue: This property is a String.
defaultChecked: This property is a Boolean.
form: This read-only property is an object that implements the HTMLFormElement interface.
accept: This property is a String.
accessKey: This property is a String.
align: This property is a String.
alt: This property is a String.
checked: This property is a Boolean.
disabled: This property is a Boolean.
maxLength: This property is a Number.
name: This property is a String.
readOnly: This property is a Boolean.
size: This property is a Number.
src: This property is a String.
tabIndex: This property is a Number.
type: This property is a String.
useMap: This property is a String.
value: This property is a String.

Functions of objects that implement the HTMLInputElement interface:

blur(): This function has no return value.
focus(): This function has no return value.
select(): This function has no return value.
click(): This function has no return value.

Objects that implement the HTMLTextAreaElement interface:

Objects that implement the HTMLTextAreaElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTextAreaElement interface:

defaultValue: This property is a String.
form: This read-only property is an object that implements the HTMLFormElement interface.
accessKey: This property is a String.
cols: This property is a Number.
disabled: This property is a Boolean.
name: This property is a String.
readOnly: This property is a Boolean.
rows: This property is a Number.
tabIndex: This property is a Number.
type: This read-only property is a String.
value: This property is a String.

Functions of objects that implement the HTMLTextAreaElement interface:

blur(): This function has no return value.
focus(): This function has no return value.
select(): This function has no return value.

Objects that implement the HTMLButtonElement interface:

Objects that implement the HTMLButtonElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLButtonElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
accessKey: This property is a String.
disabled: This property is a Boolean.
name: This property is a String.
tabIndex: This property is a Number.
type: This read-only property is a String.
value: This property is a String.

Objects that implement the HTMLLabelElement interface:

Objects that implement the HTMLLabelElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLLabelElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
accessKey: This property is a String.
htmlFor: This property is a String.

Objects that implement the HTMLFieldSetElement interface:

Objects that implement the HTMLFieldSetElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLFieldSetElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.

Objects that implement the HTMLLegendElement interface:

Objects that implement the HTMLLegendElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLLegendElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
accessKey: This property is a String.
align: This property is a String.

Objects that implement the HTMLUListElement interface:

Objects that implement the HTMLUListElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLUListElement interface:

compact: This property is a Boolean.
type: This property is a String.

Objects that implement the HTMLOListElement interface:

Objects that implement the HTMLOListElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLOListElement interface:

compact: This property is a Boolean.
start: This property is a Number.
type: This property is a String.

Objects that implement the HTMLDListElement interface:

Objects that implement the HTMLDListElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLDListElement interface:

compact: This property is a Boolean.

Objects that implement the HTMLDirectoryElement interface:

Objects that implement the HTMLDirectoryElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLDirectoryElement interface:

compact: This property is a Boolean.

Objects that implement the HTMLMenuElement interface:

Objects that implement the HTMLMenuElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLMenuElement interface:

compact: This property is a Boolean.

Objects that implement the HTMLLIElement interface:

Objects that implement the HTMLLIElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLLIElement interface:

type: This property is a String.
value: This property is a Number.

Objects that implement the HTMLDivElement interface:

Objects that implement the HTMLDivElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLDivElement interface:

align: This property is a String.

Objects that implement the HTMLParagraphElement interface:

Objects that implement the HTMLParagraphElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLParagraphElement interface:

align: This property is a String.

Objects that implement the HTMLHeadingElement interface:

Objects that implement the HTMLHeadingElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLHeadingElement interface:

align: This property is a String.

Objects that implement the HTMLQuoteElement interface:

Objects that implement the HTMLQuoteElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLQuoteElement interface:

cite: This property is a String.

Objects that implement the HTMLPreElement interface:

Objects that implement the HTMLPreElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLPreElement interface:

width: This property is a Number.

Objects that implement the HTMLBRElement interface:

Objects that implement the HTMLBRElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLBRElement interface:

clear: This property is a String.

Objects that implement the HTMLBaseFontElement interface:

Objects that implement the HTMLBaseFontElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLBaseFontElement interface:

color: This property is a String.
face: This property is a String.
size: This property is a Number.

Objects that implement the HTMLFontElement interface:

Objects that implement the HTMLFontElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLFontElement interface:

color: This property is a String.
face: This property is a String.
size: This property is a String.

Objects that implement the HTMLHRElement interface:

Objects that implement the HTMLHRElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLHRElement interface:

align: This property is a String.
noShade: This property is a Boolean.
size: This property is a String.
width: This property is a String.

Objects that implement the HTMLModElement interface:

Objects that implement the HTMLModElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLModElement interface:

cite: This property is a String.
dateTime: This property is a String.

Objects that implement the HTMLAnchorElement interface:

Objects that implement the HTMLAnchorElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLAnchorElement interface:

accessKey: This property is a String.
charset: This property is a String.
coords: This property is a String.
href: This property is a String.
hreflang: This property is a String.
name: This property is a String.
rel: This property is a String.
rev: This property is a String.
shape: This property is a String.
tabIndex: This property is a Number.
target: This property is a String.
type: This property is a String.

Functions of objects that implement the HTMLAnchorElement interface:

blur(): This function has no return value.
focus(): This function has no return value.

Objects that implement the HTMLImageElement interface:

Objects that implement the HTMLImageElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLImageElement interface:

name: This property is a String.
align: This property is a String.
alt: This property is a String.
border: This property is a String.
height: This property is a Number.
hspace: This property is a Number.
isMap: This property is a Boolean.
longDesc: This property is a String.
src: This property is a String.
useMap: This property is a String.
vspace: This property is a Number.
width: This property is a Number.

Objects that implement the HTMLObjectElement interface:

Objects that implement the HTMLObjectElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLObjectElement interface:

form: This read-only property is an object that implements the HTMLFormElement interface.
code: This property is a String.
align: This property is a String.
archive: This property is a String.
border: This property is a String.
codeBase: This property is a String.
codeType: This property is a String.
data: This property is a String.
declare: This property is a Boolean.
height: This property is a String.
hspace: This property is a Number.
name: This property is a String.
standby: This property is a String.
tabIndex: This property is a Number.
type: This property is a String.
useMap: This property is a String.
vspace: This property is a Number.
width: This property is a String.
contentDocument: This read-only property is an object that implements the Document interface.

Objects that implement the HTMLParamElement interface:

Objects that implement the HTMLParamElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLParamElement interface:

name: This property is a String.
type: This property is a String.
value: This property is a String.
valueType: This property is a String.

Objects that implement the HTMLAppletElement interface:

Objects that implement the HTMLAppletElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLAppletElement interface:

align: This property is a String.
alt: This property is a String.
archive: This property is a String.
code: This property is a String.
codeBase: This property is a String.
height: This property is a String.
hspace: This property is a Number.
name: This property is a String.
object: This property is a String.
vspace: This property is a Number.
width: This property is a String.

Objects that implement the HTMLMapElement interface:

Objects that implement the HTMLMapElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLMapElement interface:

areas: This read-only property is an object that implements the HTMLCollection interface.
name: This property is a String.

Objects that implement the HTMLAreaElement interface:

Objects that implement the HTMLAreaElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLAreaElement interface:

accessKey: This property is a String.
alt: This property is a String.
coords: This property is a String.
href: This property is a String.
noHref: This property is a Boolean.
shape: This property is a String.
tabIndex: This property is a Number.
target: This property is a String.

Objects that implement the HTMLScriptElement interface:

Objects that implement the HTMLScriptElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLScriptElement interface:

text: This property is a String.
htmlFor: This property is a String.
event: This property is a String.
charset: This property is a String.
defer: This property is a Boolean.
src: This property is a String.
type: This property is a String.

Objects that implement the HTMLTableElement interface:

Objects that implement the HTMLTableElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableElement interface:

caption: This property is an object that implements the HTMLTableCaptionElement interface and can raise an object that implements DOMException interface on setting.
tHead: This property is an object that implements the HTMLTableSectionElement interface and can raise an object that implements DOMException interface on setting.
tFoot: This property is an object that implements the HTMLTableSectionElement interface and can raise an object that implements DOMException interface on setting.
rows: This read-only property is an object that implements the HTMLCollection interface.
tBodies: This read-only property is an object that implements the HTMLCollection interface.
align: This property is a String.
bgColor: This property is a String.
border: This property is a String.
cellPadding: This property is a String.
cellSpacing: This property is a String.
frame: This property is a String.
rules: This property is a String.
summary: This property is a String.
width: This property is a String.

Functions of objects that implement the HTMLTableElement interface:

createTHead(): This function returns an object that implements the HTMLElement interface.
deleteTHead(): This function has no return value.
createTFoot(): This function returns an object that implements the HTMLElement interface.
deleteTFoot(): This function has no return value.
createCaption(): This function returns an object that implements the HTMLElement interface.
deleteCaption(): This function has no return value.
insertRow(index): This function returns an object that implements the HTMLElement interface.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.
deleteRow(index): This function has no return value.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.

Objects that implement the HTMLTableCaptionElement interface:

Objects that implement the HTMLTableCaptionElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableCaptionElement interface:

align: This property is a String.

Objects that implement the HTMLTableColElement interface:

Objects that implement the HTMLTableColElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableColElement interface:

align: This property is a String.
ch: This property is a String.
chOff: This property is a String.
span: This property is a Number.
vAlign: This property is a String.
width: This property is a String.

Objects that implement the HTMLTableSectionElement interface:

Objects that implement the HTMLTableSectionElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableSectionElement interface:

align: This property is a String.
ch: This property is a String.
chOff: This property is a String.
vAlign: This property is a String.
rows: This read-only property is an object that implements the HTMLCollection interface.

Functions of objects that implement the HTMLTableSectionElement interface:

insertRow(index): This function returns an object that implements the HTMLElement interface.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.
deleteRow(index): This function has no return value.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.

Objects that implement the HTMLTableRowElement interface:

Objects that implement the HTMLTableRowElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableRowElement interface:

rowIndex: This read-only property is a Number.
sectionRowIndex: This read-only property is a Number.
cells: This read-only property is an object that implements the HTMLCollection interface.
align: This property is a String.
bgColor: This property is a String.
ch: This property is a String.
chOff: This property is a String.
vAlign: This property is a String.

Functions of objects that implement the HTMLTableRowElement interface:

insertCell(index): This function returns an object that implements the HTMLElement interface.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.
deleteCell(index): This function has no return value.
The index parameter is a Number.
This function can raise an object that implements the DOMException interface.

Objects that implement the HTMLTableCellElement interface:

Objects that implement the HTMLTableCellElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLTableCellElement interface:

cellIndex: This read-only property is a Number.
abbr: This property is a String.
align: This property is a String.
axis: This property is a String.
bgColor: This property is a String.
ch: This property is a String.
chOff: This property is a String.
colSpan: This property is a Number.
headers: This property is a String.
height: This property is a String.
noWrap: This property is a Boolean.
rowSpan: This property is a Number.
scope: This property is a String.
vAlign: This property is a String.
width: This property is a String.

Objects that implement the HTMLFrameSetElement interface:

Objects that implement the HTMLFrameSetElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLFrameSetElement interface:

cols: This property is a String.
rows: This property is a String.

Objects that implement the HTMLFrameElement interface:

Objects that implement the HTMLFrameElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLFrameElement interface:

frameBorder: This property is a String.
longDesc: This property is a String.
marginHeight: This property is a String.
marginWidth: This property is a String.
name: This property is a String.
noResize: This property is a Boolean.
scrolling: This property is a String.
src: This property is a String.
contentDocument: This read-only property is an object that implements the Document interface.

Objects that implement the HTMLIFrameElement interface:

Objects that implement the HTMLIFrameElement interface have all properties and functions of the HTMLElement interface as well as the properties and functions defined below.

Properties of objects that implement the HTMLIFrameElement interface:

align: This property is a String.
frameBorder: This property is a String.
height: This property is a String.
longDesc: This property is a String.
marginHeight: This property is a String.
marginWidth: This property is a String.
name: This property is a String.
scrolling: This property is a String.
src: This property is a String.
width: This property is a String.
contentDocument: This read-only property is an object that implements the Document interface.

HTMLAnchorElement objects in String expressions are evaluated as HTMLAnchorElement.href. For example:

     alert(" The absolute URI is " + myAnchorElement);

is equivalent to

     alert(" The absolute URI is " + myAnchorElement.href);