Why parentNode has no properties?

I have a simple test page with frames

<html><title>Title A</title>

<frameset rows="50%,*">
<frame src="frame1.html" name="frame1" />
<frame src="frames.html" name="frame2" />
</frameset>
</html>

In frame1.html I want to get the parent's title and
change it

function changeTitle(newTitle) {

var upperNode = document.parentNode;
var upperTitle = upperNode.title;
alert(upperTitle);
upperNode.title = newTitle;
}
The problem is 2nd line, error message says
upperNode has no properties.

But I check the DOM console in Firefox, it has properties, include the
title.

Please help how to change the Web browser's title?
Thank Q very much!

May 31 '07 #1

Subscribe Post Reply

1428

Martin Honnen

RC wrote:

var upperNode = document.parentNode;

The document node is the root of the DOM tree so it does not have a
parent node. If you are scripting a frame and you are looking for the
_parent window_ then use e.g.
window.parent
to access the parent window and then e.g.
window.parent.document.title
to access the title of the document in the parent window (for instance
the title of the frameset document).

--

Martin Honnen
http://JavaScript.FAQTs.com/

May 31 '07 #2

Similar topics

Trying to Find the ParentNode

by: Michael Hill | last post by:

I am trying to get all the "polyline" tags and then find the parent node above it so I can transform it. var poly = svgDocument.getElementsByTagName("polyline"); for ( var i=0; i < poly.length;...

Javascript

override CreateElement - getting the name of the parentNode ????

by: JoostV | last post by:

However, I am wondering if I can make the creation of my object depend on the name of the parent node DURING parsing (or even the name of the grandparent node)?? In other words, how can I do...

.NET Framework

javascript parentNode

by: anupamjain | last post by:

An interesting thing is happening. My table doesnt have 'TBody', but the elem.parentNode.tagName is returning 'TBody' where elem refers to the 'tr' tag. Shouldnt it be returning 'table' ? ...

.NET Framework

getting index to parentNode's childNodes array given an element id

by: yawnmoth | last post by:

Given an element ID, is there a way to figure out what index one would need to use in the parentNode's childNodes array to get at that element? For example... <body> <div id="parent"> <div...

Javascript

Script not working in IE - parentNode problem?

by: pgasston | last post by:

Hi, I have a script which loops through all <areatags of an imagemap and changes the visibility of a hidden <div(using MooFX for the transition). The same script then searches each <divto find...

Javascript

parentNode Not Implemented?!?

by: DanielLinn | last post by:

I'm getting an error in IE 6.0.2800 that says "Error: Not implemented." when I try to get a parent. Does it whether or not 'compatibility mode' is on. Here's my code: <!DOCTYPE html PUBLIC...

Javascript

Firefox DOM -- offsetParent vs parentNode

by: amattie | last post by:

Anyone know what the specific difference is between the offsetParent and parentNode properties of a DOM element are? Mozilla's docs on the DOM element...

Javascript

IE Error: 'parentNode' is null or not an object

by: webdeveloper | last post by:

Without showing any code, I thought maybe somebody already knows what the error message in the title generally means? But in short, a menu is supposed to display by setting its inline style...