JavaScript Examples Bible - UserWorks Technologies

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JavaScript Examples Bible: The Essential Companion to JavaScript Bible
To gain an understanding of how the offset values work, scroll the window
slightly in the horizontal direction and notice that the pageXOffset value
increases; the same goes for the pageYOffset value as you scroll down. Remember
that these values reflect the coordinate in the document that is currently under the
top-left corner of the window (frame) holding the document. You can see an IE4+
version of this example in Listing 18-20 (in Chapter 4 of this book). A cross-browser
version would require very little browser branching.
parent
windowObject.parent
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Example
To demonstrate how various window object properties refer to window levels in
a multiframe environment, use your browser to load the Listing 16-14 document. It,
in turn, sets each of two equal-size frames to the same document: Listing 16-15. This
document extracts the values of several window properties, plus the
document.title properties of two different window references.
Listing 16-14: Framesetting Document for Listing 16-15
The Parent Property Example
self.name = “Framesetter”
Listing 16-15: Revealing Various Window-Related Properties
Window Revealer II
function gatherWindowData() {
var msg = “”