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my add.cgi will be like this,

...
   });
$template->process($file,\%data)
    || die $template->error();

...
[% FOREACH element = add %]
  [% IF element.req == "all" %]
 <input type="text" name="[%element.name %]" value="[%element.default 
+%]" size="58">

 
@names=$query->param();
 foreach $key (@names)
...
     $val=$query->param("$key");
      $hoh{$key}=$val;
     }

<form action="add.cgi" method="get" bgcolor="#e6ede7">

 
if(ref eq " "){
pass the data to template ;
...
{
result data code;
}