function ampel(stat, t1, t2)
{
	this.stat = stat;
	this.t1 = t1;
	this.t2 = t2;
}

var myampel = new ampel(4, 2000, 500);

// Place Yout HTML code here
...

...

function changecolor(c1, c2, c3)
{
	document.getElementById('1').style.backgroundColor = c1;
	document.getElementById('2').style.backgroundColor = c2;
	document.getElementById('3').style.backgroundColor = c3;
}

function nextstat(st)
{
	if (st == 1) {changecolor('black', 'black', 'green'); window.setTimeout('myampel.stat = nextstat(myampel.stat);', myampel.t1);}
	if (st == 2) {changecolor('black', 'yellow', 'black'); window.setTimeout('myampel.stat = nextstat(myampel.stat);', myampel.t2);}
	if (st == 3) {changecolor('red', 'black', 'black'); document.getElementById('button').src='../old/i/butn.gif'; /* window.setTimeout('myampel.stat = nextstat(myampel.stat);', myampel.t1); */}
	if (st == 4) {changecolor('red', 'yellow', 'black'); window.setTimeout('myampel.stat = nextstat(myampel.stat);', myampel.t2);}
	st++;
	if (st == 5) st = 1;
	return st;
}