diff --git a/tabeleditor.inc.php b/tabeleditor.inc.php
index 58aff3b..101cd1f 100644
--- a/tabeleditor.inc.php
+++ b/tabeleditor.inc.php
@@ -95,9 +95,9 @@
     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";
+    elm.style = "";
+    if (elm.initial_value != value) {
+        elm.style.color= "red";
         document.getElementById("__buttons").style.visibility = "visible";
         if (!entry) {
             entry = document.createElement("input");
@@ -108,7 +108,7 @@
         } 
         entry.value = value;
     } else {
-        e.target.parentNode.style.color= "";
+        elm.style.color= "";
         if (entry) {
             entry.remove();
             if (document.querySelectorAll(".changed").length == 0) {
@@ -117,8 +117,8 @@
         }
     }
     value = value.replace("&br;", "<br class=\"spacer\">");
-    e.target.parentNode.onclick = click_handler;
-    e.target.parentNode.innerHTML = value;
+    elm.onclick = click_handler;
+    elm.innerHTML = value;
   }
   function key_handler(e) {
     if (e.keyCode == 13) e.target.blur();