I am automation an ajax web application. Here are the first few lines of the htm file:

<script type="text/javascript" src="js/util.js"></script>
<script type="text/javascript" src="js/main_page.js"></script>
<script type="text/javascript" src="js/page_content.js"></script>
<script type="text/javascript" src="js/configurator.js"></script>
<meta http-equiv="Cache-Control" content="no-cache"/>
<meta http-equiv="Pragma" content="no-cache"/>
<meta http-equiv="Expires" content="0"/>
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as shown in script tag, the javascript code is not inlined to htm file. It's referred through various .js file. When I am trying to call a javascript function through WWW::Scripter, it's not working - it says it's unable to find it. Here is the code which I wrote:

use WWW::Scripter;
use HTTP::Cookies;

my $cookie_jar = HTTP::Cookies->new();
$cookie_jar->set_cookie(.......);
my $wi = WWW::Scripter->new(cookie_jar => $cookie_jar);
$wi->use_plugin('Ajax');
$wi->credentials($loginUser, $loginPass);
$wi->get("http://$ip/simpleSetup.htm");
$wi->get('javascript:isValueModified');
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Here is the error message: ReferenceError: The variable isValueModified has not been declared at line 1. This isValueModified() function is available in page_content.js file. Please help me how can I invoke the javascript function using WWW::Scripter.