Socialsites custom Joomla fields

<?php
/*------------------------------------------------------------------------
# socialsite.php - Module - My Social Time Line
# ------------------------------------------------------------------------
# author    Codeboxr Team
# copyright Copyright (C) 2010-2012 codeboxr.com. All Rights Reserved.
# @license - http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
# Websites: http://codeboxr.com
# Technical Support:  Forum - http://codeboxr.com/product/my-social-timeline-for-joomla
-------------------------------------------------------------------------*/

// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

jimport('joomla.form.helper');
JFormHelper::loadFieldClass('list');

class JFormFieldSocialsite extends JFormFieldList{

        protected $type = 'socialsite';



        protected function getInput(){


            $html = array();
            $attr = '';

            // Initialize some field attributes.
            $attr .= $this->element['class'] ? ' class="' . (string) $this->element['class'] . '"' : '';

            // To avoid user's confusion, readonly="true" should imply disabled="true".
            if ((string) $this->element['readonly'] == 'true' || (string) $this->element['disabled'] == 'true')
            {
                    $attr .= ' disabled="disabled"';
            }

            $attr .= $this->element['size'] ? ' size="' . (int) $this->element['size'] . '"' : '';
            $attr .= $this->multiple ? ' multiple="multiple"' : '';

            // Initialize JavaScript field attributes.
            $attr .= $this->element['onchange'] ? ' onchange="' . (string) $this->element['onchange'] . '"' : '';

            // Get the field options.
            //$options    = (array) $this->getOptions();

            $sites      = array('facebook' => 'Facebook', 'twitter' => 'Twitter', 'gplus' => 'Google Plus', 'delicious' => 'Delicious', 'flickr' => 'Flickr', 'linkedin' => 'Linkedin', 'pinterest' => 'Pinterest', 'youtube' => 'Youtube'
                , 'blogspot' => 'Blogspot', 'wordpress' => 'Wordpress','tumblr' => 'Tumblr', 'reddit' => 'Reddit', 'myspace' => 'Myspace', 'lastfm' => 'Last.fm','foursquare' => 'Foursquare', 'instagram' => 'Instagram','customfeed'=>'Custom Feeds','comcontent'=>'Latest Content Articles','comk2'=>'Latest K2 Articles' );

            $networks   = array();
            foreach($sites as $key => $val) :
                $networks[] = JHTML::_('select.option', $key, $val);
            endforeach;

            // Create a read-only list (no name) with a hidden input to store the value.
            if ((string) $this->element['readonly'] == 'true')
            {
                    $html[] = JHtml::_('select.genericlist', $networks, '', trim($attr), 'value', 'text', $this->value, $this->id);
                    $html[] = '<input type="hidden" name="' . $this->name . '" value="' . $this->value . '"/>';
            }
            // Create a regular list.
            else
            {
                    $html[] = JHtml::_('select.genericlist', $networks, $this->name, trim($attr), 'value', 'text', $this->value, $this->id);
            }

            return implode($html);


    }//end function fectchElement

}//end class
?>