img = new Array
("image/main1.jpg","image/main2.jpg")
var gasu = img.length;
var img_no = new Array();
for (i = 0; i < gasu; i++) {
  img_no[i] = new Image();
  img_no[i].src = img[i];
}
var gno = 1;
function time(){
	imgchg()
	setTimeout('time()',4000);
}
function imgchg() {
  if (document.all) {
    document.images.main.style.filter="blendTrans()";
    document.images.main.filters.blendTrans.Apply();
  }
  document.images.main.src = img_no[gno].src;
  if (document.all) {
    document.images.main.filters.blendTrans.Play();
  }
  gno = gno + 1;
  if (gno > (gasu - 1)) gno = 0;
}