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JavaScript: The Definitive Guide, 4th Edition
By
David Flanagan
Publisher
: O'Reilly
Pub Date
: November 2001
ISBN
: 0-596-00048-0
Pages
: 936
Slots
: 1
This fourth edition of the definitive reference to
JavaScript, a scripting language that can be embedded
directly in web pages, covers the latest version of the
language, JavaScript 1.5, as supported by Netscape 6 and
Internet Explorer 6. The book also provides complete
coverage of the W3C DOM standard (Level 1 and Level 2),
while retaining material on the legacy Level 0 DOM for
backward compatibility.
Availability
JavaScript 1.0
Synopsis
input.blur( )Description
The blur( ) method of a form element removes
keyboard focus
from that element without invoking the onblur
event handler; it is essentially the opposite of the focus(
) method. The blur( ) method does not
transfer keyboard focus anywhere, however, so the only time that it
is actually useful to call this method right before you transfer
keyboard focus elsewhere with the focus( ) method,
when you don't want to trigger the onblur
event handler. That is, by removing focus explicitly from the
element, you won't be notified when it is removed implicitly by
a focus( ) call on another element.
All form elements other than Hidden support the blur(
) method. Unfortunately, not all platforms support keyboard
navigation equally well. In Netscape 2 and 3 for Unix platforms, the
blur( ) method is functional only for those form
elements that display text: Text, Textarea, Password, and FileUpload.
