Rails - Nov 2006 - Prototype observe issues

I have tried a couple of different ways to do the following (using  
unobtrusive javascript) as well as straight javascript. So far the  
only way that I have been able to get it to work is through straight  
javascript but still is not working the way that I would hope.

Basically I have the following in my application.js

var Myapp = {
	myObserver: function(event) {
		// links to adding a new issue to the comic
		if(event.keyCode == 97) alert(''a Pressed'');
	}
}

in my view I have:

<script type="text/javascript" charset="utf-8">
	Event.observe(document, ''keypress'', Myapp. myObserver);
</script>

This works perfectly fine in Safari (don''t have a windows box to test  
on right now so not sure about IE) but it does not work at all in  
Firefox. The alert box is supposed to appear when the letter a is  
pressed on the page.

(I have prototype loaded). The wierd thing is if i change the  
event.keyCode == 97 to event.keyCode == Event.KEY_TAB firefox works.

I tried using UJS at one point and had the events working in Safari  
again by assigning body:keypress the above action but firefox hated  
that completely.

I also need to be able to remove the observer when I make a call to  
RedBox plugin which opens up a form. I can do this in safari no  
problem when using the following code:

<%= link_to_remote_redbox ''Click Here'', {:url =>
my_url_path
(@object), :method => :get, :loading => "Event.stopObserving 
(document,''keypress'', Myapp. myObserver);"} %>

And I reset the observer if I click on the close link without  
submitting the form without a problem at all. But again firefox hates  
this.

Lastly I can''t figure out how to send a variable to my custom  
function. I want to send the user to a different URL when they hit  
certain keyboard shortcuts when they are on the page but no matter  
what I try the stopObserving will not work.

Any suggestions? am I going down the wrong path? anyone have a good  
tutorial? I have tried everything I could find on google and have not  
had much luck.

Thanks again for the response