Support for JavaScript and JScript Document and Browser Objects

Opera supports ECMAScript 2nd and 3rd edition fully, and intend to support DOM level 2 fully (separate DOM documentation will be forthcoming).

In practice Opera also supports JavaScript 1.4 with a few exceptions as well as a subset of JScript. Opera only supports the JScript properties when the user agent is set to Microsoft Internet Explorer. This you can do through setting it to "Identify as MSIE 5.0" in File > Preferences > Connections > Browser identification.

For more information on Opera scripting support, see the specifications main page.

Legend

Object

Group (JavaScript or JScript property or JavaScript method)

• property
• array[ ]
• method()
• Supported
• No support
• Property having quirks in Opera

JavaScript and JScript objects

Button

JavaScript properties

• value

Checkbox

JavaScript properties

• checked
• defaultChecked
• value

Document

JavaScript properties

• alinkColor
• anchors[]
• applets[]
• bgColor
• body
• cookie
• domain
• embeds[]
• fgColor
• forms[]
• images[]
• lastModified
• linkColor
• links[]
• location
• plugins[]
• referrer
• title
• URL
• vlinkColor

JScript properties

• all

JavaScript methods

• clear()
• close()
• open()
• write()
• writeln()

{event}

JavaScript properties

• altKey
• cancelBubble
• clientX
• clientY
• ctrlKey
• currentTarget
• data
• height
• modifiers
• pageX
• pageY
• screenX
• screenY
• shiftKey
• target
• type
• which

JScript properties

• srcElement
• keyCode
• x
• y
• offsetX
• offsetY

JavaScript methods

• preventDefault()
• stopPropagation()

FileUpload

JavaScript properties

• value

Form

JavaScript properties

• action
• elements[]
• elements.length
• encoding
• length
• method
• name
• target

JavaScript methods

• reset()
• submit()

Hidden

JavaScript properties

• value

History

JavaScript properties

• length
• next
• previous

JavaScript methods

• back()
• forward()
• go()

{HTML Collection}

This is returned by all methods that should return a list of elements, eg. document.links.

JavaScript properties

• length

JavaScript methods

• item()
• namedItem()

{HTML Element}

JavaScript properties

• offsetParent
• offsetLeft
• offsetTop
• tagName
• parentNode
• style
• [attributes]

JScript properties

• all[]
• children[]
• className
• document
• parentElement

JavaScript methods

• contains()
• getAttribute()
• getElementsByTagName()
• setAttribute()
• setAttributeNode()

Image

JavaScript properties

• border
• height
• hspace
• lowsrc
• name
• src
• vspace
• width

Input

JavaScript properties

• checked
• defaultChecked
• defaultValue
• form
• length
• name
• options[]
• selectedIndex
• type
• value

JavaScript methods

• blur()
• click()
• focus()
• select()

Link

JavaScript properties

• hash
• host
• hostname
• href
• pathname
• port
• protocol
• search
• target
• text

Location

JavaScript properties

• hash
• host
• hostname
• href
• pathname
• port
• protocol
• search

JavaScript methods

• reload()
• replace()

Navigator

JavaScript properties

• appCodeName
• appName
• appVersion
• language
• mimeTypes[]
• platform
• plugins
• userAgent

JavaScript methods

• javaEnabled()
• taintEnabled()

Opera

JavaScript methods

• (platform dependent)

Option

JavaScript properties

• defaultSelected
• index
• selected
• text
• value

Password

JavaScript properties

• value

Plugin

No support

Radio

JavaScript properties

• checked
• defaultChecked
• value

Reset

JavaScript properties

• value

Screen

JavaScript properties

• availHeight
• availWidth
• colorDepth
• height
• pixelDepth
• width

Select

JavaScript properties

• length
• options
• selectedIndex
• Type

Style

The complete list will be in the DOM2 Style specifications to be completed later.

JavaScript properties

• background
• backgroundColor
• backgroundImage
• color
• top (can only set pixels)
• left (can only set pixels)
• pixelTop
• pixelLeft
• pixelWidth
• pixelHeight
• visibility
• zIndex

Text

JavaScript properties

• value

Textarea

JavaScript properties

• value

window

JavaScript properties

• closed
• defaultStatus
• document
• frames[]
• history
• innerHeight
• innerWidth
• java
• location
• locationbar
• length
• name
• navigator
• opener
• opera
• outerHeight
• outerWidth
• pageXOffset
• pageYOffset
• parent
• screen
• self
• status
• top
• window
• [frame name]
• [form or image element name]

JavaScript methods

• alert()
• blur()
• clearInterval()
• clearTimeout()
• close()
• confirm()
• focus()
• name()
• moveBy()
• moveTo()
• open()
• print()
• prompt()
• resizeBy
• resizeTo()
• scrollBy
• scrollTo()
• setInterval()
• setTimeout()