www.gusucode.com > 凡人网络购物系统 2008源码程序 > Inc/com.js
function hidecom(){ obj=document.getElementById("floatcom"); obj.style.display='none'; } lastScrollY = 0; function heartBeat() { diffY = document.body.scrollTop; percent =1*(diffY-lastScrollY); if(percent>0) percent = Math.ceil(percent); else percent = Math.floor(percent); document.all.floatcom.style.pixelTop+= percent; lastScrollY = lastScrollY+percent; } window.setInterval("heartBeat()",1);