JavaScript Examples Bible - UserWorks Technologies

Chapter 2 ✦ Window and Frame Objects (Chapter 16)
When you try this page, also turn off window event capture. Now only the buttons’
onClick event handlers execute, and the page does not flash red.
clearInterval(intervalIDnumber)
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓ ✓ ✓
Example
See Listings 16-36 and 16-37 for an example of how setInterval() and
clearInterval() are used together on a page.
clearTimeout(timeoutIDnumber)
NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5
Compatibility ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Example
The page in Listing 16-22 features one text field and two buttons (Figure 2-6). One
button starts a countdown timer coded to last one minute (easily modifiable for
other durations); the other button interrupts the timer at any time while it is running.
When the minute is up, an alert dialog box lets you know.
Listing 16-22: A Countdown Timer
Count Down Timer