Hi monks, I am facing problem with resetting fields.Here I am displaying two radio buttons along with one corresponding values containing one list-box,the problem is that whenever i press reset button the application should reset all the fields like initial state. Can any one please help me how to do it. I have tried with killing the application and re executing it again but it doesn't sounds good for me.

#!/usr/bin/perl -w
use Tk;
use strict;
use warnings;

use Tk::LabFrame;
use Tk::JPEG;
use Tk::PNG;

my $mw = MainWindow->new;
$mw -> geometry ("400x400+100+120") ;
$mw -> CmdLine;

my $chk = 0;
my @GUI_List;
my $var;
my $reset;
$reset = $mw -> Button(-text => "Reset", -state => 'normal',-command =
+> \&reset)->pack();
$reset -> place ( -x => 160, -y => 200 );
my $f1 = $mw -> LabFrame(-label=> "Select one Test",-font=> 'ukai',-la
+belside => "acrosstop")->pack();
my $s300 = $f1->Radiobutton(-text=>"TEST1",-value=>"do_1",-indicator=>
+1,-variable=>\$chk,-font=>'ukai 11',-command=>\&do_1)->pack();
$s300->configure(-state);
my $s310 = $f1->Radiobutton(-text=>"TEST2",-value=>"do_2",-indicator=>
+1,-variable=>\$chk,-font=>'ukai',-command=>\&do_2)->pack();
$s310->configure(-state);
$f1 -> place ( -x => 40 , -y => 50, -width=>"140", -height => "100" );
my $f2 = $mw -> LabFrame(-label => "Selet One",-font=> 'ukai',-labelsi
+de => "acrosstop")->pack();

my @INP_List = (qw/TES0 TES1 TES2 TES3 TES4 TES5 TES6 TES7 TES8 TES9/)
+;
my $lb = $f2 -> Scrolled("Listbox", -scrollbars => "e",-selectmode => 
+"extended",-font=> 'ukai',-activestyle   => "dotbox")->pack();
$lb -> bind('<Double-1>'=> sub {
                        my $temp =  $_[0]->get($_[0]->curselection),;
                        print "$temp\n"

                                },
                        );

$f2 -> place ( -x => 220 , -y => 50, -width =>"160", -height => "100")
+;

MainLoop;

sub do_1 {
        if ($chk eq "do_1" ) {
        $lb->delete(0,'end');
        @GUI_List = @INP_List[0,1,2,3,4];
        $lb->insert('end',@GUI_List);
        #print "@GUI_List\n";
        }
}

sub do_2 {
        if ($chk eq "do_2") {
        $lb->delete(0,'end');
        @GUI_List = @INP_List[5,6,7,8,9];
        $lb -> insert('end', @GUI_List);
        #print "@GUI_List\n";
        }
}

sub reset {
        $mw->update;
}
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