XUL/Javascript virtual function problem

aidan_walsh

I'm trying to port someone else's extension over to FF1.5.

My code is like this:

function foo(x, y, z){ }

function bar(){
	var alice = window._content.document.createElement("a");
	alice.onClick = function() { foo(x, y, z); return false; };
}

When I run this it gets as far as alice.onClick and then throws a "Component is not available" exception. I suspect that this is to do with XPCNativeWrappers for the extension, but I have no idea how to get around it so that I can use the virtual function. I have Googled, but I can't find anything that lets me know what the default names for XPCNativeWrappers created by FF might be.

Or does anyone have a suggestion on how I can get around this another way?