ser.js

来自「一个很好的ＡＳＰ和java商城购物系统」· JavaScript 代码 · 共 16 行

function hideser(){
  obj=document.getElementById("floatser");
  obj.style.display='none';
}
lastScrollYser = 0;
function heartBeatser()
{
	diffY	= document.body.scrollTop;
	percent =1*(diffY-lastScrollYser);

	if(percent>0) percent = Math.ceil(percent);
	else   percent = Math.floor(percent);
	document.all.floatser.style.pixelTop+= percent;
	lastScrollYser = lastScrollYser+percent;
}
window.setInterval("heartBeatser()",1);