//获取浏览器可视区宽度function getWidth() { if (window.innerWidth){ return window.innerWidth; } else{ if (document.compatMode == "CSS1Compat"){ return document.documentElement.clientWidth; } else{ return document.body.clientWidth; } }}

//获取浏览器可视区高度function getWidth() { if (window.innerHeight){ return window.innerHeight; } else{ if (document.compatMode == "CSS1Compat"){ return document.documentElement.clientHeight; } else{ return document.body.clientHeight; } }}

//获取浏览器卷曲高度function getscrollTop() { return document.documentElement.scrollTop || document.body.scrollTop;}

 未完，待续...