JSniffer

// http://msdn.microsoft.com/en-us/library/cc197053%28v=vs.85%29.aspx
// http://stackoverflow.com/questions/2663701/firefox-window-onerror-event-problem-alerts-script-error-only
// http://stackoverflow.com/questions/3092761/window-onerror-in-safari-javascript
// http://www.quirksmode.org/dom/events/error.html
//
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
// https://developer.mozilla.org/en/JavaScript/Reference/Statements/throw
// https://developer.mozilla.org/en/JavaScript/Reference/Statements/try...catch
//
// http://stackoverflow.com/questions/1008692/window-onerror-not-firing-in-firefox
// http://www.javascriptkit.com/javatutors/error3.shtml
// http://www.javascriptkit.com/javatutors/error.shtml
// https://developer.mozilla.org/en/DOM/window.onerror
// http://stackoverflow.com/questions/3092761/window-onerror-in-safari-javascript
// http://blog.csdn.net/WebAdvocate/article/details/5821803