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Top Forums UNIX for Dummies Questions & Answers onChange + javascript in perl CGI - question Post 302218848 by cbkihong on Sunday 27th of July 2008 10:00:48 AM
Old 07-27-2008
You did not show anything about the onClick, but I assume if you want to capture onChange you ought not be implementing onClick? Even though theoretically they do not interfere if you do them properly, it may be a source of confusion unless you know you are doing it the right way.

Do you get any expected values for $arg? Seems like from your post you don't but I am not totally clear about that. If so, you should first concentrate on getting $arg to carry the value you expect first.

How do you get the value of $arg? I assume you used CGI->param()?

By the way, have you tested the changeDispatch() Javascript function separately using a static HTML test page before? If you look at DOM:document.location - MDC there is a note saying the use of document.location.href as a write property is not portable. In fact I have only used

window.location = url;

in the past. I have not seen anyone making a redirect like you did (using document.location.href) before. Are you sure that function is working properly?

If everything fails, I suggest you to:

(1) Check the Javascript debugger for any relevant error messages
(2) Re-post with the HTML generated by Perl. Because your issue is not related to Perl but HTML and Javascript, the abstraction by Perl CGI may mask investigation.
 

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CGI::Compile(3pm)					User Contributed Perl Documentation					 CGI::Compile(3pm)

NAME
CGI::Compile - Compile .cgi scripts to a code reference like ModPerl::Registry SYNOPSIS
use CGI::Compile; my $sub = CGI::Compile->compile("/path/to/script.cgi"); DESCRIPTION
CGI::Compile is an utility to compile CGI scripts into a code reference that can run many times on its own namespace, as long as the script is ready to run on a persistent environment. NOTE: for best results, load CGI::Compile before any modules used by your CGIs. RUN ON PSGI
Combined with CGI::Emulate::PSGI, your CGI script can be turned into a persistent PSGI application like: use CGI::Emulate::PSGI; use CGI::Compile; my $cgi_script = "/path/to/foo.cgi"; my $sub = CGI::Compile->compile($cgi_script); my $app = CGI::Emulate::PSGI->handler($sub); # $app is a PSGI application CAVEATS
If your CGI script has a subroutine that references the lexical scope variable outside the subroutine, you'll see warnings such as: Variable "$q" is not available at ... Variable "$counter" will not stay shared at ... This is due to the way this module compiles the whole script into a big "sub". To solve this, you have to update your code to pass around the lexical variables, or replace "my" with "our". See also <http://perl.apache.org/docs/1.0/guide/porting.html#The_First_Mystery> for more details. AUTHOR
Tatsuhiko Miyagawa <miyagawa@bulknews.net> CONTRIBUTORS
Rafael Kitover <rkitover@cpan.org> Hans Dieter Pearcey <hdp@cpan.org> COPYRIGHT &; LICENSE Copyright (c) 2009 Tatsuhiko Miyagawa <miyagawa@bulknews.net> This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
ModPerl::RegistryCooker CGI::Emulate::PSGI perl v5.14.2 2011-05-24 CGI::Compile(3pm)
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