/* index */

//image
if (document.images) {
  var img0 = new Array();
  var img1 = new Array();
  for (i=1; i<11; i++) {
    img0[i] = new Image(); img0[i].src = "images/pre" + i + "m.gif";
    img1[i] = new Image(); img1[i].src = "images/pre" + i + ".gif";
  }
}
function A1(i) {
  target_img = eval("document.s" + i);
  if (document.images) { target_img.src = img1[i].src; }
}
function A0(i) {
  target_img = eval("document.s" + i);
  if (document.images) { target_img.src = img0[i].src; }
}