https://developer.mozilla.org/En/DOM/Window.onerror
http://blog.metawrap.com/blog/CommentView.aspx?guid=316dfeca-e5da-450e-8d4c-f23861e84456
http://mattsnider.com/javascript/window-onerror-event/
https://developer.mozilla.org/En/DOM/Window.onerror
http://blog.metawrap.com/blog/CommentView.aspx?guid=316dfeca-e5da-450e-8d4c-f23861e84456
http://mattsnider.com/javascript/window-onerror-event/