DOM

■プロパティ
attributes
childNodes
firstChild
lastChild
localName
name
namespaceURI
nextSibling
nodeName
nodeType
nodeValue
ownerDocument
parentNode
prefix
previousSibling
tagName
textContent

■メソッド
appendChild
cloneNode
createAttribute
createElement
createTextNode
getAttribute
getAttributeNS
getAttributeNode
getAttributeNodeNS
getElementById
getElementsByTagName
hasAttribute
hasAttributeNS
hasAttributes
hasChildNodes
insertBefore
item
normalize
removeAttribute
removeAttributeNS
removeAttributeNode
removeChild
replaceChild
setAttribute
setAttributeNS
setAttributeNode
setAttributeNodeNS

■イベント
addEventListener
removeEventListener
dispatchEvent

JavaScript DOM リファレンス
http://www.openspc2.org/JavaScript/JavaScript_DOM/