https://dmv.de.gov/CLF4Apps/myDMV/MyDLID/js/mydl.timeout.js

1var timeout_window;
2var countdown_timer;
3var timeout_flag = false;
4var settings = {
5      timeout: 1200,//in seconds
6      countdown: 60,//1 min
7	  display_starttime:null,
8	  timeout_url: null     
9}  
10function init_timeout(){
11	stop_timeout();
12	startTimer();
13} 
14function stop_timeout(){
15	timeout_flag = false;
16	$("#timeoutWarning").hide();	
17	stopTimer();
18}
19function startCountdown(display){
20	if(countdown_timer){
21		window.clearInterval(countdown_timer);
22		countdown_timer = null;
23	}
24	var timer = settings.countdown, minutes, seconds;	
25	countdown_timer = window.setInterval(function () {
26        minutes = parseInt(timer / 60, 10)
27        seconds = parseInt(timer % 60, 10);
28        minutes = minutes < 10 ? "0" + minutes : minutes;
29        seconds = seconds < 10 ? "0" + seconds : seconds;
30		if(seconds%2 == 0){
31			display.css('background-color', '#F79F81');
32		}else{
33			display.css('background-color', '#FEEFB3');
34		}
35        display.html(minutes + " min " + seconds + " sec");
36        if (--timer < 0) {
37            window.clearInterval(countdown_timer);
38			timeout_flag = true;
39			timeoutOrder();
40        }
41    }, 1000);	
42}
43function startTimer(){
44	if(timeout_window){
45		stopTimer();
46		timeout_window = null;
47	}
48	timeout_window = window.setTimeout(function() {
49	   displayTimeoutMsg();	   
50	}, (settings.timeout - settings.countdown) * 1000);
51}
52function displayTimeoutMsg(){
53	$(window).scrollTop(0);
54	$("#timeoutWarning").show();
55	startCountdown($("#timeout_countdown"));	
56}
57function stopTimer(){
58	window.clearTimeout(timeout_window);
59	if(countdown_timer){
60		window.clearInterval(countdown_timer);
61		countdown_timer = null;
62	}
63}
64function timeoutOrder(){
65	//alert("updating timeout..");
66	submitRequest(settings.timeout_url);
67}