diff --git a/templates/main.js b/templates/main.js
index 23af9447..74cf40e6 100644
--- a/templates/main.js
+++ b/templates/main.js
@@ -1,5 +1,4 @@
 {% raw %}
-
 /* gettext-compatible _ function, example of usage:
  *
  * > // Loading pl_PL.json here (containing polish translation strings generated by tools/i18n_compile.php)
@@ -258,7 +257,7 @@ function highlightReply(id) {
 	if (typeof window.event != "undefined") {
 		// don't highlight on middle click
 		if (event.which == 2) return true;
-		window.event.preventDefault();
+		if (active_page == 'thread' && typeof window.event.preventDefault != "undefined") window.event.preventDefault();
 	}
 	
 	var divs = document.getElementsByTagName('div');
@@ -434,6 +433,9 @@ function ready() {
 
 var post_date = "{{ config.post_date }}";
 var max_images = {{ config.max_images }};
+if (typeof active_page === "undefined") {
+	active_page = "page";
+}
 
 {% if config.google_analytics %}{% raw %}