Test URL before using it?

[Robert Oschler]

I'd like to be able to see if a URL was functional before I attempt to put
it in an IFrame. Is there a way to do this so I can prevent the user from
ending up with a 404 error page in the IFrame?

thx

--

Robert Oschler
"Let the web hear you, add your voice to your web site in minutes!"
-- http://audiodirect.spiderchase.com/
(For a limited time, free voiceover with every sign-up, use this link
instead)
-- http://audio.spiderchase.com/

[Grant Wagner]

Re: Test URL before using it?

Robert Oschler wrote:
[color=blue]
> I'd like to be able to see if a URL was functional before I attempt to put
> it in an IFrame. Is there a way to do this so I can prevent the user from
> ending up with a 404 error page in the IFrame?
>
> thx
>
> --
>
> Robert Oschler[/color]

If you know your users are going to be using IE6+ and Netscape 7+, you could
use the XML HTTP Request object to check for the page prior to changing the
location of the iframe:

<url: http://jibbering.com/2002/4/httprequest.html />

--
| Grant Wagner <gwagner@agrico reunited.com>

* Client-side Javascript and Netscape 4 DOM Reference available at:
*

http://devedge.netscape.com/library/manuals/2000/javascript/1.3/reference/frames.html

* Internet Explorer DOM Reference available at:
*
http://msdn.microsoft.com/workshop/a...ence_entry.asp

* Netscape 6/7 DOM Reference available at:
* http://www.mozilla.org/docs/dom/domref/
* Tips for upgrading JavaScript for Netscape 6/7 and Mozilla
* http://www.mozilla.org/docs/web-deve...upgrade_2.html

[kaeli]

Re: Test URL before using it?

In article <jvDPa.11419$Hw .8767317@news2. news.adelphia.n et>,
no_replies@fake _email_address. invalid shared the illuminating thought...[color=blue]
> I'd like to be able to see if a URL was functional before I attempt to put
> it in an IFrame. Is there a way to do this so I can prevent the user from
> ending up with a 404 error page in the IFrame?
>[/color]

Not with javascript if the page is from a different domain, which I
assume it is or you'd know if it was there.
Could be done with dynamically generated pages (server-side), such as
JSP/servlet, using a language that understands URLs.


----------------------------------------
~kaeli~

http://www.ipwebdesign.net/wildAtHeart

http://www.ipwebdesign.net/kaelisSpace

Jesus saves, Allah protects, and Cthulhu
thinks you'd make a nice sandwich.
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