opera compatibility fixes (2)

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") {

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)

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;
 }