var loop_index = 2;
var prev_div = 1;

function timedCount()
{
	var myEffect2 = new Fx.Morph('main_pic_'+loop_index, {duration: '1000'});
 
	myEffect2.start({
		'opacity': [0, 1]
	});
}
window.addEvent('domready', function()
{
	var timer = mySwitch.periodical(3000);
	mySwitch();
});


function mySwitch()
{			
	var myEffect = new Fx.Morph('main_pic_'+prev_div, {duration: '1000'});
 
	myEffect.start({
		'opacity': [1, 0]
	});

	var myEffect2 = new Fx.Morph('main_pic_'+loop_index, {duration: '1000'});
 
	myEffect2.start({
		'opacity': [0, 1]
	});
	
	if (loop_index == 4)
	{
		loop_index = 1;
		prev_div = 4;
	}
	else
	{
		prev_div = loop_index;
		loop_index++;
	}
}