Iam using following code to generate CAPTCHA :

```
$captcha = $this->createElement('captcha', 'captcha',
    array('required' => true,
    'captcha' => array('captcha' => 'Image',
    'font' => 'resource/fonts/arial.ttf',
    'fontSize' => '24',
    'wordLen' => '5',
    'height' => '50',
    'width' => '150',
    'imgDir' => 'resource/captcha',
    'imgUrl' => 'resource/captcha',
    'gcFreq'=>'10',    
    'dotNoiseLevel' => '10',
    'lineNoiseLevel' => '2')));

    $captcha->setLabel('Captcha');

```

Following code is generated:

```
<label for="captcha-input" class="login_label required">Captcha</label>
<img width="150" height="50" alt="" src="captcha/eb3a592c8b1c7a71b0c7ce5179422be2.png" />
<input type="hidden" name="captcha[id]" value="eb3a592c8b1c7a71b0c7ce5179422be2" id="captcha-id">
<input type="text" name="captcha[input]" id="captcha-input" value="">
<input type="text" name="captcha" id="captcha" value="eb3a592c8b1c7a71b0c7ce5179422be2">

```

Can someone guide me how can I remove extra input text fields like 

```
<input type="text" name="captcha" id="captcha" value="eb3a592c8b1c7a71b0c7ce5179422be2">

```

Thanks in advance