js mode example cleanups

javascript/examples/Environment/Input/lockedIn/lockedIn.pde

@@ -1,5 +1,6 @@
 /**
- *  This example demonstrates how to promt for user input
+ *  This example demonstrates how to promt for user input. It first asks
+ *  for password which then is used to unlock the sketch.
  */
  
 String password = null;
@@ -94,15 +95,17 @@ boolean testLocked ( String passTry )
 }
 
 
-// this is needed to define a way for us to be able to call out
-
+/* this interface is needed to explain Processing what the
+properties of the object are that is handed in from JS */
 interface JavaScript
 {
     String promtForInput( String message, String defaultAnswer );
 }
 
+// a variable
 JavaScript js;
 
+// called from JavaScript to hand in the object
 void setJS ( JavaScript jsi )
 {
     js = jsi;

javascript/examples/Environment/Input/lockedIn/promt.js

@@ -1,16 +1,19 @@
 
+// wait for document to load
 window.onload = function () {
     tryFindSketch();
 }
 
+// find sketch instance
 function tryFindSketch () {
     var sketch = Processing.instances[0];
     if ( sketch == undefined )
-        return setTimeout( tryFindSketch, 200 ); // try again in 0.2 secs
-    
-    sketch.setJS( this );
+        setTimeout( tryFindSketch, 200 ); // try again in 0.2 secs
+    else
+        sketch.setJS( this );
 }
 
+// called from inside the sketch
 function promtForInput ( msg, def ) {
     return window.prompt( msg, def );
 }