spacer
Yehuda Shiran May 16, 2000
Disabling Event Handlers
Tips: May 2000

Yehuda Shiran, Ph.D.
Doc JavaScript

Developer News
OpenOffice 3.2 Lands Amid Critical Changes
Red Hat, IBM Firmly in KVM Virtualization Camp
Red Hat Talks Up Open Source Cloud Plans

Since Internet Explorer 4.0x doesn't feature a captureEvents() method to capture events at a high level, it doesn't feature the releaseEvents() method to stop capturing the events. Therefore, the only way to disable an event handler is to completely delete it. For example, the following statement specifies an onclick event handler for the document object:

document.onclick = functionName;
while the following statement disables the event handler:

document.onclick = null;
Once you assign null to the event handler property, it does not have any function to process an event that comes its way. In other words, the null value disables the object's event handler.

Note that this technique is also supported in Navigator. It can be used for any object, and for any event handler. Learn more about event handlers in Column 10, The Internet Explorer Event Model.


People who read this tip also read these tips:

Look for similar tips by subject:


The Network for Technology Professionals

Search:

About Internet.com

Legal Notices, Licensing, Permissions, Privacy Policy.
Advertise | Newsletters | E-mail Offers

webref The latest from WebReference.com Browse >
Search Engine Optimization: Selecting and Embedding Keywords · Are Google's Language Translation Web Services Ready for Prime Time? · Installing and Using Meeplace, the Business Review CMS
Sitemap · Experts · Tools · Services · Email a Colleague · Contact FREE Newsletters 
 The latest from internet.com
IBM DB2 10 for z/OS: Justifying the Upgrade · Living La Vida Colo: Choosing the Right Colocation Facility · FTC Concerns over Social Media Privacy Linger