var tips; var theTop = 10; /*这是默认高度,越大越往下*/var old = theTop;function moveTips() {    var tt = 0;    if (window.innerHeight) {        pos = window.pageYOffset    } else if (document.documentElement && document.documentElement.scrollTop) {        pos = document.documentElement.scrollTop    } else if (document.body) {        pos = document.body.scrollTop;    }    pos = pos - tips.offsetTop + theTop;    pos=tips.offsetTop+pos/10;    if (pos < theTop) pos = theTop;    if (pos != old) {        tips.style.top = pos+"px";        tt = 0;    }    old = pos;    setTimeout(moveTips,tt);}onload = function initFloatTips() {    tips = document.getElementById(‘clockDiv‘);    moveTips();};