spacer
Yehuda Shiran September 7, 2000
Triggering an Action by a Property Change
Tips: September 2000

Yehuda Shiran, Ph.D.
Doc JavaScript

Developer News
Google Chrome Playing Catch-Up on Extensions
Open Solutions Alliance Gets New Leadership
Red Hat Spacewalk Expands Linux Management
Every object fires a PropertyChange event when one of its properties changes. You can use the onPropertyChange() event handler to do any additional actions, following the property change. The left image in the following pair changes when moused over or out. The right image in the following pair is programmed to do an extra action whenever one of its properties changes. It sets the left image to its initial GIF, (../bc.gif). Play around with the images:

Here is the code that implements the above pair of images:

<IMG ID = "leftImg" SRC="../bc.gif"
 onMouseOver="this.src = '../gl.gif';" 
 onMouseOut="this.src = '../gr.gif';">
<IMG SRC="../bc.gif" onPropertyChange="leftImg.src = '../bc.gif';" 
 onMouseOver="this.src = '../gl.gif';" 
 onMouseOut="this.src = '../gr.gif';">

Notice how we access other elements. The left image is labeled with ID = "leftImg". The right image accesses the left image's SRC attribute as leftImg.src.

Learn more about dynamic styles in Column 66, Dynamic Styles.


People who read this tip also read these tips:

Look for similar tips by subject:

internet.comearthweb.comDevx.commediabistro.comGraphics.com

Search:

Jupitermedia Corporation has two divisions: Jupiterimages and JupiterOnlineMedia

Jupitermedia Corporate Info

Legal Notices, Licensing, Reprints, Permissions, Privacy Policy.
Advertise | Newsletters | Tech Jobs | Shopping | E-mail Offers

webref The latest from WebReference.com Browse >
Popular JavaScript Framework Libraries: An Overview - Part 3 · Accessing Your MySQL Database from the Web with PHP · Working with the DOM Stylesheets Collection
Sitemap · Experts · Tools · Services · Email a Colleague · Contact FREE Newsletters 
 The latest from internet.com
MS Access and MySQL · Cisco AutoQoS: VoIP QoS for Mere Mortals · While VoIP Adoption Explodes in Enterprise, Carrier Spending Lags