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  1.    #1  
    I have a scene with some textfields. As I'm not sure if I can prevent the user from entering in invalid values, is there a way to prevent a scene from deactivating -- being poped off the stack?

    If the user 'swips back' to go to the previous scene and there is an error on the current, I would like to show an error-message and prevent the current scene from going away.

    Any ideas?
  2. #2  
    Add the following code to your scene:

    // "YourAssistant" is the name of your scene assistant
    YourAssistant.prototype.handleCommand = function(event) {
         if (event.type == Mojo.Event.back) {
              // Do validity checks here.  If they pass, call popScene.
              // If they fail, display your error message.
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