Add Positive SSL Seal to PMPro Checkout Page

positive-ssl-seal.php

<?php
/*
	Add Positive SSL Seal to PMPro Checkout Page.
*/
function my_option_pmpro_sslseal($seal) {	
	if(is_admin()) {
		return$seal;
	}
ob_start(); ?>
	<script type="text/javascript"> //<![CDATA[
		var tlJsHost = ((window.location.protocol == "https:") ? "https://secure.trust-provider.com/" : "http://www.trustlogo.com/");
		document.write(unescape("%3Cscript src='" + tlJsHost + "trustlogo/javascript/trustlogo.js' type='text/javascript'%3E%3C/script%3E"));
	  //]]></script>
	  <script language="JavaScript" type="text/javascript">
		TrustLogo("https://www.positivessl.com/images/seals/positivessl_trust_seal_md_167x42.png", "POSDV", "none");
	  </script>	
<?php $html = ob_get_clean();

	return $seal . $html;
}
add_filter('option_pmpro_sslseal', 'my_option_pmpro_sslseal');