var num1 = 1;
imgnum = new Array(3)
imgnum[0] = "./img/top/topicspict/graph001.jpg";
imgnum[1] = "./img/top/topicspict/graph002.jpg";
imgnum[2] = "./img/top/topicspict/graph003.jpg";
imgnum[3] = "./img/top/topicspict/graph004.jpg";
imgnum[4] = "./img/top/topicspict/graph005.jpg";

function ImgShow(){
  if (document.imgsh1.complete){
    document.imgsh1.src = imgnum[num1];
    num1++;
    if (num1 > 4) num1 = 0;
  }
  setTimeout('ImgShow()',10000);
}