JavaScript Examples Bible - UserWorks Technologies

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JavaScript Examples Bible: The Essential Companion to JavaScript Bible
Example
See Listing 19-8 (in Chapter 5 of this book) for an example of the
createTextRange() method in action.
doScroll([“scrollAction”])
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓
Example
Use The Evaluator (Chapter 13 in the JavaScript Bible) to experiment with the
doScroll() method in IE5+. Size the browser window so that at least the vertical
scrollbar is active (meaning it has a thumb region). Enter the following statement
into the top text field and press Enter a few times to simulate clicking the PgDn key:
document.body.doScroll()
Return to the top of the page and now do the same for scrolling by the increment of
the scrollbar down arrow:
document.body.doScroll(“down”)
You can also experiment with upward scrolling. Enter the desired statement in
the top text field and leave the text cursor in the field. Manually scroll to the bottom
of the page and then press Enter to activate the command.
Event Handlers
onAfterPrint
onBeforePrint
See the onAfterPrint event handler for the window object, Chapter 16 of the
JavaScript Bible.
onScroll
document.body.onScroll
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Compatibility ✓ ✓ ✓
Example
Listing 18-21 is a highly artificial demonstration of what can be a useful tool for
some page designs. Consider a document that occupies a window or frame, but one
that you don’t want scrolled, even by accident with one of the newer mouse wheels