FAQ Topic - I have <a href="javascript:somefunction()"> what ... ? (2010-03-16)
FAQ server
FAQ Topic - I have <a href="javascript:somefunction()"> what
... ?
-----------------------------------------------------------------------
Whatever the rest of your question, this is generally a very bad idea.
The ` javascript: ` pseudo protocol was designed to replace the
current document with the value that is returned from the expression.
For example:
<a href="javascript:'<h1>' + document.lastModified + '</h1>'">lastModified</a>
will result in replacing the current document with the value
returned from ` document.lastModified `, wrapped in an ` <h1> `
tag.
When the expression used evaluates to an ` undefined ` value
(as some function calls do), the contents of the current page are not
replaced. Regardless, some browsers (notably IE6) interpret this as
navigation and will enter into a 'navigation' state where GIF
animations and image swaps will stop working.
It is also possible for IE to be configured such that it supports
javascript but not the ` javascript: ` protocol. This results
in the user seeing a protocol error for ` javascript: ` URIs.
The ` javascript: ` pseudo protocol creates accessibility and
usability problems. It provides no fallback for when the script is not
supported.
Instead, use
` <a href="something.html" onclick="somefunction();return false"> `
where ` something.html ` is a meaningful alternative. Alternatively,
attach the ` click ` callback using an event registry.
http://jibbering.com/faq//faq/example/jsuri/
http://www.useit.com/alertbox/20021223.html
The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/
--
The sendings of these daily posts are proficiently hosted
by http://www.pair.com.
Stefan Weiss
> -----------------------------------------------------------------------
> FAQ Topic - I have <a href="javascript:somefunction()"> what
> ... ?
> -----------------------------------------------------------------------
The same FAQ item was posted 4 days ago. The FAQ about client side file
system access was also repeated after only 4 days. Is there something
wrong with the FAQ autoposter script?
--
stefan
Peter Billam
>
> Instead, use
> ` <a href="something.html" onclick="somefunction();return false"> `
> where ` something.html ` is a meaningful alternative. Alternatively,
> attach the ` click ` callback using an event registry.
It would be helpful if this code could also include how to set
the colour of the text to the default link-colour, and to change
the arrow to the default you-are-hovering-over-a-link pointer...
> http://jibbering.com/faq//faq/example/jsuri/
This doesn't look right. Two faq/s in a row ?
Regards, Peter
--
Peter Billam www.pjb.com.au www.pjb.com.au/comp/contact.html
Thomas 'PointedEars' Lahn
> On 2010-03-16, FAQ server <javas...@dotinternet.be> wrote:
>> Instead, use
>> ` <a href="something.html" onclick="somefunction();return false"> `
>> where ` something.html ` is a meaningful alternative. Alternatively,
>> attach the ` click ` callback using an event registry.
>
> It would be helpful if this code could also include how to set
> the colour of the text to the default link-colour, and to change
> the arrow to the default you-are-hovering-over-a-link pointer...
It would not. Both are unnecessary here.
>> http://jibbering.com/faq//faq/example/jsuri/
>
> This doesn't look right. Two faq/s in a row ?
ACK. And the <`> issue should finally be fixed as well.
PointedEars
--
Danny Goodman's books are out of date and teach practices that are
positively harmful for cross-browser scripting.
-- Richard Cornford, cljs, <cife6q$253$1$8300...@news.demon.co.uk> (2004)
Peter Billam
> Peter Billam wrote:
>>> ` <a href="something.html" onclick="somefunction();return false"> `
>> the colour of the text to the default link-colour, and to change
>> the arrow to the default you-are-hovering-over-a-link pointer...
>
> It would not. Both are unnecessary here.
ACK: the fallback href="something.html" provides those services :-)