$ie->form_name( $name )
$ie->field($name,$value)

##</code><code>##

<form id="ldb" name="ldb" method="get" action="/times_fares/ldb/;jsessionid=10BE7B01E6848F6282BF503A24CD606F" onsubmit="kbSubmit(this)">
<div id="contentbg">
    <h1><em>Live</em> Departures &amp; Arrivals</h1>
    <div class="jpbody">
    
            
                <p>Please enter the entire, partial name or 3-letter code for your station.</p>
        
        
        
        <fieldset>
            <div class="station">
                
                    
                        <label for="mainStation">Station:</label>
                        <input id="mainStation" name="mainStation" type="text" value="" size="30"/>
                        <div id="mainStationAc" class="sacDiv"></div>
  
##</code><code>##

my $url = "http://www.nationalrail.co.uk/ldb/";
$ie = Win32::IE::Mechanize->new( visible => 1 );
$ie->get( $url );
my $formname = "ldb";
my $gotform = $ie->form_name( $formname );