use english spelling: replace costumStart with customStart.

static/custom/js.template

@@ -1,6 +1,6 @@
-function costumStart()
+function customStart()
 {
   //define your javascript here
-  //jquery is avaiable - except index.js
+  //jquery is available - except index.js
   //you can load extra scripts with $.getScript http://api.jquery.com/jQuery.getScript/
 }

static/index.html

@@ -148,8 +148,8 @@
                 return randomstring;
             }
             
-            //start the costum js
-            if(typeof costumStart == "function") costumStart();
+            // start the custom js
+            if (typeof customStart == "function") customStart();
         </script>
 
 </html>

static/js/pad.js

@@ -414,8 +414,8 @@ var pad = {
 
     $(document).ready(function()
     {
-      //start the costum js
-      if(typeof costumStart == "function") costumStart();
+      // start the custom js
+      if (typeof customStart == "function") customStart();
       getParams();
       handshake();
     });

static/js/timeslider.js

@@ -65,8 +65,8 @@ var socket, token, padId, export_links;
 function init() {
   $(document).ready(function ()
   {
-    //start the costum js
-    if(typeof costumStart == "function") costumStart();
+    // start the custom js
+    if (typeof customStart == "function") customStart();
 
     //get the padId out of the url
     var urlParts= document.location.pathname.split("/");