Question

I need to know if there are no keydowns or clicks for 10 seconds and if so display an alert window, I can use jquery if it’s more efficient than simple js.

How can I do it? Thanks

Answer 1

Something like this:

(function(){

    var timer;
    function resetTimer(){
        clearTimeout(timer);
        timer = setTimeout(function(){
            alert('No keydown for 10 seconds');   
            // Call reset timer here if you want the timer to start again
            // when the alert is closed

            // Otherwise, if you want to stop the timer forever,
            // remove the event handler from document.onkeydown
        }, 10000);
    }
    resetTimer();

    document.onkeydown = resetTimer;

})();

JSFiddle

It assumes you haven’t bound anything else to the documents keydown listener. If you have then you should use addEventListener and attachEvent instead.