offButton.src = “images/blueButton.gif” onButton.src = “images/redButton.gif” } ... such as moving the cursor over an image, JavaScript will catch it and do whatever you’ve asked it to do.

The first image (before rollover) has been given the name button1.This code says that the chgImg function is called by both the onMouseover and onMouseout event handlers, both of which pass ...

Lots of high-res images can really spruce up a Web site. But they can also slow it down-- images are files, files use bandwidth, and bandwidth is directly related to wait times. It's time you get ...

That is, the x.src = "foo.gif" setting, doesn't halt the browser, until the image fully loaded.<br><br>You will either have to preload ALL the images, or use a timeout, and check back, once in a ...