Psudo-error loggging JS thinger.

errorlog.sql

CREATE TABLE errorLog (
    Timestamp,
    IP,
    Line,
    ErrorMessage,
    URL,
    Cookies,
    UserAgent,
    Plugins,
    State --If we can capture the functioncall or stack or some sort of "thrown" issue.
);

reporting.js

window.onerror = function(error, url, line){    
    someAjaxyThing({
        CollectBrowserDataAsObject(), 
        error, 
        url, 
        line
    });
}