collapse_feedlist: fix for button element

diff --git a/tt-rss.js b/tt-rss.js
index 72ee01cced98a3b8e37d67f516620626f717bea1..aeb63eb0fa63d4ca77adf54b2601ff9ac1e6bc9e 100644 (file)
--- a/tt-rss.js
+++ b/tt-rss.js
@@ -935,7 +935,7 @@ function collapse_feedlist() {
 
                if (!Element.visible(fl)) {
                        Element.show(fl);
-                       fbtn.value = "<<";
+                       fbtn.innerHTML = "<<";
 
                        if (theme != "graycube") {
 
@@ -957,7 +957,7 @@ function collapse_feedlist() {
 
                } else {
                        Element.hide(fl);
-                       fbtn.value = ">>";
+                       fbtn.innerHTML = ">>";
 
                        if (theme != "graycube") {