Try http://www.neilmix.com/narrativejs/doc/ http://www.neilmix.com/narrativejs/doc/ -- "a small extension to the JavaScript language that enables blocking capab

Try http://www.neilmix.com/narrativejs/doc/ http://www.neilmix.com/narrativejs/doc/ -- "a small extension to the JavaScript language that enables blocking capabilities for asynchronous event callbacks".