HTML and Script not show in my wordpress theme - php

Question

I'm using a custom theme option framework on my theme. I have been integrated everything, but in textarea when paste and try to save option it automatic remove HTML codes and <script> only text and <> are remain. Text showing in my website source page here http://www.wrock.org/ I don't know how to resolve this problem.
Also there is some google tracking code, and when I explored the source I found the following
/* ----------------------------------------------------------------------------------- */
/* Show analytics code in footer */
/* ----------------------------------------------------------------------------------- */
function wrockmetro_analytics() {
$shortname = wrockmetro_get_option('of_shortname');
$output = wrockmetro_get_option($shortname . 'wrock_analytics');
if ($output <> "")
echo "<script type='text/javascript'>" . stripslashes($output) . "</script>\n";
}
add_action('wp_footer', 'wrockmetro_analytics');
Textarea code from OptionInterface.php
// Textarea
case 'textarea':
$cols = '8';
$ta_value = '';
if (isset($value['options'])) {
$ta_options = $value['options'];
if (isset($ta_options['cols'])) {
$cols = $ta_options['cols'];
} else {
$cols = '8';
}
}
$val = stripslashes($val);
$output .= '<textarea id="' . esc_attr($value['id']) . '" class="of-input" name="' . esc_attr($option_name . '[' . $value['id'] . ']') . '" cols="' . esc_attr($cols) . '" rows="8">' . esc_textarea($val) . '</textarea>';
break;