asp.net给页面增加一个层

在做登录的时候想着别老是用跳转页面，用户体验超差的，而且对于网速慢的用访来说，还要去跳转一次重新加载一个新的页面，显得有点不爽!就弄了一个层直接在当前页面跳转!

废话不说直接上代码!

function ShowNo() //隐藏两个层

{

document.getElementById("doing").style.display = "none";

document.getElementById("divLogin").style.display = "none";

}

function $(id) {

return (document.getElementById) ? document.getElementById(id) : document.all[id];

}

function showFloat() //根据屏幕的大小显示两个层

{

var range = getRange();

$('doing').style.width = range.width + "px";

$('doing').style.height = range.height + "px";

$('doing').style.display = "block";

document.getElementById("divLogin").style.display = "";

}

function getRange() //得到屏幕的大小

{

var top = document.body.scrollTop;

var left = document.body.scrollLeft;

var height = document.body.clientHeight;

var width = document.body.clientWidth;

if (top == 0 && left == 0 && height == 0 && width == 0) {

top = document.documentElement.scrollTop;

left = document.documentElement.scrollLeft;

height = document.documentElement.clientHeight;

width = document.documentElement.clientWidth;

}

return { top: top, left: left, height: height, width: width };

}