JavaScript: The Definitive Guide, 4th Edition
by David Flanagan

The following errata were *corrected* in the 3/05 reprint:

Here's the key to the markup:

        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem



[381-2]  Example 19-3; page 381, the beginDrag() function:

else if (document.attachEvent) {  // IE 5+ Event Model
    // In the IE Event model, we can't capture events, so these handlers
    // are triggered when only if the event bubbles up to them.
    // This assumes that there aren't any intervening elements that
    // handle the events and stop them from bubbling.
    document.attachEvent("onmousemove", moveHandler);
    document.attachEvent("onmouseup", upHandler);
}


NOW READS:

else if (document.attachEvent) {  // IE 5+ Event Model
    // In the IE Event model, we capture events by calling
    // setCapture() on the element to capture them

    elementToDrag.attachEvent("onmousemove", moveHandler);
    elementToDrag.attachEvent("onmouseup", upHandler);
    elementToDrag.setCapture();
}



AND, page 382, the upHandler() function:

else if (document.detachEvent) {       // IE 5+ Event Model
    document.detachEvent("onmouseup", upHandler);
    document.detachEvent("onmousemove", moveHandler);
}


NOW READS:

else if (document.detachEvent) {       // IE 5+ Event Model
    elementToDrag.detachEvent("onmouseup", upHandler);
    elementToDrag.detachEvent("onmousemove", moveHandler);
    elementToDrag.releaseCapture();
}




The fix uses the setCapture() and releaseCapture() methods of IE5 to enable IE's
version of event capturing.  Credit for this fix goes to Bob Kline of RK Systems
(http://www.rksystems.com).