diff --git a/www/js/my.full.js b/www/js/my.full.js
index 1f29ffb28f..427fd0b3c2 100644
--- a/www/js/my.full.js
+++ b/www/js/my.full.js
@@ -368,8 +368,8 @@ function hideTreeBox(treeType)
 {
     $.cookie(treeType, 'hide', {expires:config.cookieLife, path:config.webRoot});
     $('.outer').addClass('hide-side');
-    if($('.side-handle .icon-caret-left').size() > 0)$('.side-handle .icon-caret-left').removeClass('icon-caret-left').addClass('icon-caret-right');
-    if($('.side-handle .icon-caret-right').size() > 0)$('.side-handle .icon-caret-right').removeClass('icon-caret-right').addClass('icon-caret-left');
+    var direction = $('.side-handle .icon-caret-left').size() > 0 ? 'left' : 'right';
+    $('.side-handle .icon-caret-' + direction).removeClass('icon-caret-' + direction).addClass('icon-caret-' + (direction == 'left' ? 'right' : 'left'));
 }
 
 /**
@@ -383,8 +383,8 @@ function showTreeBox(treeType)
 {
     $.cookie(treeType, 'show', {expires:config.cookieLife, path:config.webRoot});
     $('.outer').removeClass('hide-side');
-    if($('.side-handle .icon-caret-right').size() > 0) $('.side-handle .icon-caret-right').removeClass('icon-caret-right').addClass('icon-caret-left');
-    if($('.side-handle .icon-caret-left').size() > 0) $('.side-handle .icon-caret-left').removeClass('icon-caret-left').addClass('icon-caret-right');
+    var direction = $('.side-handle .icon-caret-left').size() > 0 ? 'left' : 'right';
+    $('.side-handle .icon-caret-' + direction).removeClass('icon-caret-' + direction).addClass('icon-caret-' + (direction == 'left' ? 'right' : 'left'));
 }
 
 /**