<script>
var currentpos, timer;   
function initialize() {   
  timer = setInterval("scrollwindow()", 60);   
}   
function sc() {   
  clearInterval(timer);   
}   
function scrollwindow() {   
  var scrollPos;   
  if (typeof window.pageYOffset != 'undefined') {   
    scrollPos = window.pageYOffset;   
  } else if (typeof document.compatMode != 'undefined'   
      && document.compatMode != 'BackCompat') {   
    scrollPos = document.documentElement.scrollTop;   
  } else if (typeof document.body != 'undefined') {   
    scrollPos = document.body.scrollTop;   
  }   
  
  currentpos = scrollPos;  
  window.scroll(0, ++currentpos);   
  if (currentpos == scrollPos) {   
    //sc();   
  }
}   
document.onmousedown = sc; 
document.ondblclick = initialize; 
timer = setInterval("scrollwindow()", 60);  

</script>
 

頁面載入之後緩慢下滑，點選後停止下滑