// バナー
function rangazo(){
ca = new Array();
ca[0] = 'banner/doritos20th.jpg';
ca[1] = 'banner/cheetos.jpg';
ca[2] = 'banner/mike.jpg';
ca[3] = 'banner/takoyakitei.jpg';
ca[4] = 'banner/cheeseball.jpg';


p = Math.round(Math.random() * 4);
document.write('<IMG SRC="' +ca[p]+ '" width="403" height="61">');
}


// 減速スクロール

var scrj = 1;
function softScrollBack() {
   if(navigator.appName == "Microsoft Internet Explorer" && document.compatMode == "CSS1Compat") {
      var scdist = document.body.parentNode.scrollTop;
   } else {
      var scdist = document.body.scrollTop;
   }
   if(scrj<50 && scdist) {
      scdist = (scdist>2) ? Math.ceil(scdist*.2) : 1;
      scrj++;
      scrollBy(0,-scdist);
      setTimeout("softScrollBack()",20);
   } else {
      scrollTo(0,0);
      scrj = 1;
   }
}