var cache1, cache2, vache3,cache4,cache5,cache6,cache7;
cache1 = new Image();
cache1.src = "images/index/index_r3_c2.jpg";
cache2 = new Image();
cache2.src = "images/index/index_rover01.jpg";
cache3 = new Image();
cache3.src = "images/index/index_rover02.jpg";
cache4 = new Image();
cache4.src = "images/index/index_rover03.jpg";
cache5 = new Image();
cache5.src = "images/index/index_rover04.jpg";
cache6 = new Image();
cache6.src = "images/index/index_rover05.jpg";
cache7 = new Image();
cache7.src = "images/index/index_rover06.jpg";
var i = 0;
var j = 0;
var l = 0;
function changeImgSrc(imgsrc,dur,trans)
{
	idLogo.className = "filter1";
	idLogo.filters[0].Apply();
	idLogo.filters.revealTrans.transition=trans;
	idLogo.filters.revealTrans.duration=dur;
	idLogo.src = imgsrc;
	idLogo.filters[0].Play();
}
function startChange()
{
	t = setInterval("changeImg()",1500);
} 
function changeImg()
{
	var e = idLogo.src;
	i++;
	j = i % 7;
	if (j == 0) changeImgSrc("images/index/index_r3_c2.jpg",1,23); 
	if (j == 1) changeImgSrc("images/index/index_rover01.jpg",1,23);
	if (j == 2) changeImgSrc("images/index/index_rover02.jpg",1,23);
	if (j == 3) changeImgSrc("images/index/index_rover03.jpg",1,23);
	if (j == 4) changeImgSrc("images/index/index_rover04.jpg",1,23);
	if (j == 5) changeImgSrc("images/index/index_rover05.jpg",1,23);
	if (j == 6) changeImgSrc("images/index/index_rover06.jpg",1,23);
	i = (i > 30000) ? 0 : i;
}