收集篇(已测)-- <html><head> <script type="text/javascript"> var currentPosition,timer; var speed=10; function GoTop(){ timer=setInterval("runToTop()",1); } function runToTop(){ currentPosition=document.documentElement.scro
以下代码实现判断页面的滚动条的滚动方向: var sign = 80;//定义默认的向上滚与向下滚的边界 window.onscroll = window.onresize = function(){ var oScrollTop=$(window).scrollTop(); if ( oScrollTop > 80) { //write your code } if ( oScrollTop < 80) { //write your code } if ( oScrollTop > s