var bgs = ["/img/banner_imgs/thema.png", "/img/banner_imgs/delta.png", "/img/banner_imgs/flavia.png", "/img/banner_imgs/voyager.png", "/img/banner_imgs/ypsilon.png"]; 

var carousel = true;
if(bgs.length < 2) {carousel = false;}
var count = 0;
var timer = null;
var preloaded = false;
fadeout_delay = null;

function banner_rotator()
{
	if(!count) count=0;
	document.getElementById("banner_img").src = bgs[count];
	$("#banner_img").fadeIn('slow');

	if(count < bgs.length && preloaded == false)
	{
		preload_image_object = new Image();
		preload_image_object.src = bgs[count+1];
		if (count == (bgs.length - 1) ) {preloaded = true;}
	}
	fadeout_delay = setTimeout("$('#banner_img').fadeOut('slow')", 4300);
	if (count < bgs.length - 1) {count++;} else {count = 0;}
	if(carousel == true) timer = setTimeout('banner_rotator()',5000);
}