August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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Submit.onFocus
JavaScript1.0+, JScript1.0+ Nav2+, IE3+, Opera3+ Syntax
onFocus="command"
Description
The onFocus event handler of an instance of a Submit object is fired when focus is set to that particular submit button. Care should be taken when using this event handler, because it is possible to get into an infinite loop when using the onBlur event handler or blur() method.
Example
Listing 7.488 contains two text boxes and a submit button. The submit button has the Focus event intercepted within its tag. The second text box is used for a counter for the number of times the onFocus event handler is fired.
In the script, the event calls a function that assigns the first text box focus. The result of this is that when a user tries to ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.