Thanks for you help! I read the documentation of both JE and SpiderMonkey. Gave JE a shot but i m unable to proceed. Here is the code that i wrote to test JE:

use strict;
use warnings;
use JE;
use Data::Dumper;
use File::Slurp;

my $je = new JE;

$je->html_mode(1);

$je->eval(scalar read_file 'output.js');

my $return_val = $je->eval('start()') or die $@;
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The file output.js has the content of the javascript webpage that i want to parse.When i run the above script the JE failes with the follwing error:

ReferenceError: The variable start has not been declared at line 1.
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Thanks!

Your approach differs from any advice you've been given. JE is an alpha release, are you sure you want to continue to ignore the advice you've been give on tried and tested routes and use this?

Well i read the documentation for WWW::Mechanize::Firefox and WWW::Scripter::Plugin::JavaScript.Out of the two I got more interested in WWW::Scripter::Plugin::JavaScript.I believe WWW::Scripter::Plugin::JavaScript uses JE as the backend engine.Please do correct me if you feel otherwise.I m sorry I never wanted to heed anyone's advice.I started with parsing the javascript response I got and embedded login credentials but got stuck with the "click".Read what Corion suggested but wasn't able to understand much.