diff --git a/backend.php b/backend.php
index 75891208d..656d88dfa 100644
--- a/backend.php
+++ b/backend.php
@@ -2688,11 +2688,10 @@
 			print "<div align='right'>
 				<input class=\"button\"
 					id=\"fadd_submit_btn\" disabled=\"true\"
-					type=\"submit\" onclick=\"javascript:qafAdd()\" value=\"Subscribe\">
+					type=\"submit\" onclick=\"return qafAdd()\" value=\"Subscribe\">
 				<input class=\"button\"
-					type=\"submit\" onclick=\"javascript:closeInfoBox()\" 
+					type=\"submit\" onclick=\"return closeInfoBox()\" 
 					value=\"Cancel\"></div>";
-
 		}
 
 		if ($id == "search") {
diff --git a/functions.js b/functions.js
index 76a443d9d..2f7774b90 100644
--- a/functions.js
+++ b/functions.js
@@ -1268,6 +1268,8 @@ function qafAdd() {
 	xmlhttp.open("GET", "backend.php?" + query, true);
 	xmlhttp.onreadystatechange=dlg_frefresh_callback;
 	xmlhttp.send(null);
+
+	return false;
 }
 
 function filterCR(e)
diff --git a/tt-rss.js b/tt-rss.js
index 87b5be1be..c85dd09fd 100644
--- a/tt-rss.js
+++ b/tt-rss.js
@@ -478,6 +478,8 @@ function qfdDelete(feed_id) {
 	xmlhttp.open("GET", "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id);
 	xmlhttp.onreadystatechange=dlg_frefresh_callback;
 	xmlhttp.send(null);
+
+	return false;
 }