// JavaScript Document

function showDetail() {
//背景
 var bgObj=document.getElementById("bgDiv");
 bgObj.style.width = document.body.offsetWidth + "px";
 bgObj.style.height = screen.height + "px";

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

//关闭
  document.getElementById("payment-info-close").onclick = function(){
  bgObj.style.display = msgObj.style.display = "none";
  }
  msgObj.style.display = bgObj.style.display = "block";
}