or download this
$cgi->checkbox_group(-name=>'checkoptions',-value=> ['Checkbox1', 'Che
+ckbox2', 'Checkbox3'], -onClick=>"this.form.submit()")
my $flag= $cgi->param('checkoptions');
if($flag eq 'Checkbox1'){ print "Input for checkbox1 ",$cgi->textfie
+ld(-name=>"option1");}