Script allows for watching JavaScript timeouts (intervals, timers) being created and cleared. Useful in debugging purposes.

watching_timeouts.js

window.originalSetTimeout=window.setTimeout;
window.originalClearTimeout=window.clearTimeout;
window.activeTimers=[];

window.setTimeout=function(func,delay)
{
    var id = window.originalSetTimeout(func,delay);
    window.activeTimers[id] = {"func": func, "delay": delay};
    return id;
};

window.clearTimeout=function(timerID)
{
    delete window.activeTimers[timerID];
    window.originalClearTimeout(timerID);
};