diff --git a/tabeleditor.inc.php b/tabeleditor.inc.php
index cd7c4b8..58aff3b 100644
--- a/tabeleditor.inc.php
+++ b/tabeleditor.inc.php
@@ -90,25 +90,32 @@
 <script>
   function blur_handler(e) {
     var value = e.target.value;
+    var elm   = e.target.parentNode;
+    var cellid = elm.cellid;
+    var entry_name = "__buttons_"+cellid;
+    var entry = document.getElementById(entry_name);
 
     e.target.parentNode.style = "";
     if (e.target.parentNode.initial_value != value) {
-    e.target.parentNode.style.color= "red";
-    document.getElementById("__buttons").style.visibility = "visible";
+        e.target.parentNode.style.color= "red";
+        document.getElementById("__buttons").style.visibility = "visible";
+        if (!entry) {
+            entry = document.createElement("input");
+            entry.className = "changed";
+            entry.type = "hidden";
+            entry.name = entry.id = entry_name;
+            document.getElementById("tabform").appendChild(entry);
+        } 
+        entry.value = value;
     } else {
-    e.target.parentNode.style.color= "";
+        e.target.parentNode.style.color= "";
+        if (entry) {
+            entry.remove();
+            if (document.querySelectorAll(".changed").length == 0) {
+                document.getElementById("__buttons").style.visibility = "hidden";
+            }
+        }
     }
-
-    var entry_name = "__buttons_"+e.target.parentNode.cellid;
-    var entry = document.getElementById(entry_name);
-    if (!entry) {
-    entry = document.createElement("input");
-    entry.type = "hidden";
-    entry.name = entry.id = entry_name;
-    document.getElementById("tabform").appendChild(entry);
-    } 
-    entry.value = value;
-
     value = value.replace("&br;", "<br class=\"spacer\">");
     e.target.parentNode.onclick = click_handler;
     e.target.parentNode.innerHTML = value;
@@ -116,8 +123,8 @@
   function key_handler(e) {
     if (e.keyCode == 13) e.target.blur();
     else if (e.keyCode == 27) {
-    e.target.value = e.target.parentNode.initial_value;
-    e.target.blur();
+        e.target.value = e.target.parentNode.initial_value;
+        e.target.blur();
     }
   }
   function click_handler(e) {