Cool web site - CD-553Appendix F . Examples from Parts III and
March 18th, 2008CD-553Appendix F . Examples from Parts III and IV But the character key then shows the value 65 for all three events, because the ASCII value of the uppercase letter happens to match the keyboard key code for that letter. 3. Press and release the Down Arrow key (be sure the cursor still flashes in the TEXTAREA, because that s where the keyboard events are being monitored). As a non-character key, it does not fire an onKeyPress event. But it does fire the other events, and assigns 40 as the code for this key. 4. Poke around with other non-character keys. Some may produce dialog boxes or menus, but their key codes are recorded nonetheless. Note that not all keys on a Macintosh keyboard register with IE/Mac. returnValue NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility Example You can find several examples of the returnValueproperty at work in Chapter 15. Look at Listings 15-30, 33, 36, 37, 38, and 45. Moreover, many of the other examples in that chapter can substitute the returnValueproperty way of cancelling the default action if the scripts were to be run exclusively on IE4+. srcElement NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility Example As a simplified demonstration of the power of the srcElement property, Listing 29-17 has but two event handlers defined for the BODY element, each invoking a single function. The idea is that the onMouseDown and onMouseUp events will bubble up from whatever their targets are, and the event handler functions will find out which element is the target and modify the color style of that element. An extra flair is added to the script in that each function also checks the className property of the target element. If the className is bold a class name shared by (IE) event.srcElement
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