Javascript - Accessing the DOM

Accessing the document inside an iframe:

frameElement.contentDocument
frameElement.contentWindow

Accessing the parent of an element:

element.parentNode

object.innerHTML = "<iframe ...>" (error)
object.insertAdjacentHTML
insert iframe into the object using createElement and appendChild
var top = self;

iframe.contentWindow.document.body.innerHTML
self.document.body.innerHTML
iframe.document.body.innerHTML
iframe.contentDocument.body.innerHTML

document.getElementById(id)
element.getElementsByTagName(name)

element.attributes
element.localName
element.nodeName
element.nodeValue
element.nodeType
element.ownerDocument
element.parentNode
element.prefix
element.textContent
element.setAttribute("href","http://www.somewhere.com");
element.getAttribute("href");
element.addEventListener()

element.insertBefore
element.appendChild
element.removeChild
element.replaceChild

document.createElement("p")

parentNode.appendChild(element)

window.content
window.dump

document.getBoxObjectFor
element.getBoundingClientRect()
document.elementFromPoint(x,y)