var intervalDelay = 8000;
var fadeDuration = 2500;
var i = 0;


var img1 = document.getElementById("bgr-img1");
var img2 = document.getElementById("bgr-img2");
var img3 = document.getElementById("bgr-img3");
var img4 = document.getElementById("bgr-img4");
var img5 = document.getElementById("bgr-img5");

var interval = setInterval("changeBgr()",intervalDelay);

function changeBgr()
{
	
	switch (i)
	{
		case 0:
			$(img1).fadeIn(fadeDuration);
			break;
		case 1:
			$(img2).fadeIn(fadeDuration);
			$(img1).fadeOut(fadeDuration);			
			break;
		case 2:
			$(img3).fadeIn(fadeDuration);	
			$(img2).fadeOut(fadeDuration);
			break;
		case 3:
			$(img4).fadeIn(fadeDuration);	
			$(img3).fadeOut(fadeDuration);
			break;
		case 4:
			$(img5).fadeIn(fadeDuration);	
			$(img4).fadeOut(fadeDuration);
			break;
		case 5:
			$(img5).fadeOut(fadeDuration);
			break;									
	}
	
	
	i++;
	i %= 5;
	
}