var fade_speed = 4000;
var fade_duration = 3;

var t;
var j = 0;
var k ;
var image_Array = new Array();


function start_fade(imaegURL){
	
var image = new Array();
image[0] = imaegURL + "image1.jpg";
image[1] = imaegURL + "image2.jpg";
image[2] = imaegURL + "image3.jpg";
image[3] = imaegURL + "image4.jpg";
image[4] = imaegURL + "image5.jpg";
k = image.length;
	
for (i = 0; i < k; i++) {
  image_Array[i] = new Image();
  image_Array[i].src = image[i];
}

fade_loop();

}

function fade_loop() {
  if (document.all) {
    document.images.topimage.style.filter="blendTrans(duration=fade_duration)";
    document.images.topimage.filters.blendTrans.Apply();
  }
  document.images.topimage.src = image_Array[j].src;
  if (document.all) {
    document.images.topimage.filters.blendTrans.Play();
  }
  j = j + 1;
  if (j > (k - 1)) j = 0;
    t = setTimeout('fade_loop()', fade_speed);
  }