[Laszlo-dev] Are there any tricks I should know about lz.embed?

[P T Withington]

I'd like to add a handler to the browser window focus event that will  
call into (all) the laszlo apps on the page to a keyboard kernel  
routine that I am calling allKeysUp.  The idea is that when a browser  
window (re) gains focus, we need to clear out any keys that might  
appear to be "stuck" (this is for LPP-8056).  AFAICT, keystrokes that  
take focus away from the browser window, such as Alt-tab, or a command- 
key sequence that opens another window, don't see the key up event  
(because the browser window no longer has focus).

It looks to me like I can use the existing broadcast mechanism and the  
callMethod mechanism to implement this.  I'm just wondering if there  
are any 'gotchas' I need to watch for when fiddling with embednew.js.   
Are there any tricks to getting the browser to load the new version?   
Do I have to do anything special to deal with DHTML vs. SWF apps?

Thanks for any guidance you can give!