var time=4;
var rtime=5000;
var image= new Array();
  image[0]='img/top.jpg';
  image[1]='img/top2.jpg';
var i=0;

function imgchange(){
  imgframe.filters.blendTrans.Apply();
  imgframe.filters.blendTrans.duration=time;
  imgframe.src=image[i];
  imgframe.filters.blendTrans.Play();
  i=i+1;
  if (i>1) i=0;
  t=setTimeout('imgchange()',rtime);
}