// JavaScript Document
function showDetail() { //弹出层窗口
//背景
var bgObj=document.getElementById("bgDiv");
bgObj.style.width = document.body.offsetWidth + "px";
//bgObj.style.height = screen.height + "px";
bgObj.style.height = 2000 + "px";

//定义窗口
var msgObj=document.getElementById("msgDiv");
msgObj.style.marginTop = -75 + document.documentElement.scrollTop + "px";

//关闭
document.getElementById("msgShut").onclick = function(){
bgObj.style.display = msgObj.style.display = "none";
}
msgObj.style.display = bgObj.style.display = "block";
msgDetail.innerHTML=""
}