diff --git a/index.html b/index.html
index 092cb21..06dba3d 100644
--- a/index.html
+++ b/index.html
@@ -11,6 +11,7 @@
 <script type="text/javascript" src="js/app.js"></script>
 <script type="text/javascript" src="js/ox.extra.js"></script>
 <script type="text/javascript" src="js/dnd.js"></script>
+<script type="text/javascript" src="js/error.js"></script>
 <link rel="stylesheet" href="css/styles.css" />
 
 </head>
diff --git a/js/error.js b/js/error.js
new file mode 100644
index 0000000..fb8863c
--- /dev/null
+++ b/js/error.js
@@ -0,0 +1,19 @@
+window.onerror = function(error, url, line, column, errorObj) {
+    if (error == 'TypeError: Attempted to assign to readonly property.') {
+        return;
+    }
+    try {
+        var stack = (errorObj && errorObj.stack) || "(no stack trace available)",
+            url = document.location.pathname + ' at ' + url,
+            text = url + "\n\nLine:" + line + "\n\n" + error + "\n\n" + stack;
+        logError(text);
+    } catch(e) {}
+};
+
+function logError(error) {
+    if (document.location.hostname == 'speedtrans.pad.ma') {
+        var request = new XMLHttpRequest();
+        request.open('post', '/error', true);
+        request.send(error);
+    }
+}