--- wp-hashcash-original.php	2010-04-05 11:00:14.000000000 +0200
+++ wp-hashcash.php	2010-04-05 11:21:07.000000000 +0200
@@ -476,15 +476,19 @@
 	for($i = 0; $i < count($js); $i++){
 		$js[$i] = $js[$i] ^ $key;
 	}
+	$js=apply_filters('wphc_jskey',$js);
 	
 	// libs function encapsulation
 	$libs = "function wphc(){\n";
 	
 	// write bytes to javascript, xor with key
 	$libs .= "\tvar wphc_data = [".join(',',$js)."]; \n";
+
+	$libs .= "\t\t//WPHC1\n"; //Placeholder - replace this comment in filter to apply custom 'security'
 	
 	// do the xor with key
 	$libs .= "\n\tfor (var i=0; i<wphc_data.length; i++){\n";
+	$libs .= "\t\t//WPHC2\n"; //Placeholder - replace this comment in filter to apply custom 'security'
 	$libs .= "\t\twphc_data[i]=wphc_data[i]^$key;\n";
 	$libs .= "\t}\n";
 	
@@ -493,7 +497,10 @@
 	$libs .= "\tfor (var i=0; i<wphc_data.length; i++) { \n";
 	$libs .= "\t\ta[i] = String.fromCharCode(wphc_data[i] & 0xFF, wphc_data[i]>>>8 & 0xFF, ";
 	$libs .= "wphc_data[i]>>>16 & 0xFF, wphc_data[i]>>>24 & 0xFF);\n";
+	$libs .= "\t\t//WPHC3\n"; //Placeholder - replace this comment in filter to apply custom 'security'
 	$libs .= "\t}\n";
+
+	$libs .= "\t\t//WPHC4\n"; //Placeholder - replace this comment in filter to apply custom 'security'
 	
 	$libs .= "\n\treturn eval(a.join('')); \n";
 	
@@ -501,7 +508,7 @@
 	$libs .= "}";
 	
 	// return code
-	return $libs;
+	return apply_filters('wphc_getjs',$libs);
 }
 
 /**
@@ -530,8 +537,8 @@
 	}
 	
 	echo '<div><input type="hidden" id="wphc_value" name="wphc_value" value=""/></div>';
-	echo '<p>' . __('Powered by', 'wp-hashcash') . ' <a href="http://wordpress-plugins.feifei.us/hashcash/">WP Hashcash</a></p>';
-	echo '<noscript><div><small>Wordpress Hashcash needs javascript to work, but your browser has javascript disabled. Your comment will be '.$verb.'!</small></div></noscript>';
+	echo '<p id="wphcpowered">' . __('Powered by', 'wp-hashcash') . ' <a href="http://wordpress-plugins.feifei.us/hashcash/">WP Hashcash</a></p>';
+	echo '<noscript><div id="wphcnojs"><small>Wordpress Hashcash needs javascript to work, but your browser has javascript disabled. Your comment will be '.$verb.'!</small></div></noscript>';
 }
 
 add_action('comment_form', 'wphc_add_commentform');