// JavaScript Document

function setOpacity(obj, opacity) {
  opacity = (opacity >= 100)?99.999:opacity;
  obj.style.filter = "alpha(opacity:"+opacity+")"; // IE(Win)
  obj.style.KHTMLOpacity = opacity/100; // Safari 1.1
  obj.style.MozOpacity = opacity/100; // Older Mozilla and Firefox
  obj.style.opacity = opacity/100; // Safari 1.2以降, newer Firefox and Mozilla, CSS3
}

cnt = 0;
// フェードイン開始(速)
function fade(img){
  cnt=0;
  setOpacity(document.images[img],cnt);
  setTimeout("fdInImg('"+img+"')",10); // 10ms
}	

function fdInImg(img) {
  cnt += 5; // %
  setOpacity(document.images[img],cnt);
  if(cnt >= 100) return;
  setTimeout("fdInImg('"+img+"')",10); // 10ms
}

// フェードイン開始(遅)
function fades(img){
  cnt=0;
  setOpacity(document.images[img],cnt);
  setTimeout("fdInImgs('"+img+"')",50); // 50ms
}	

function fdInImgs(img) {
  cnt += 5; // %
  setOpacity(document.images[img],cnt);
  if(cnt >= 100) return;
  setTimeout("fdInImgs('"+img+"')",50); // 50ms
}