js弹出遮罩层
html代码：
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>无标题页</title> <script src="javsscript/jquery-1.7.1.js" type="text/javascript"></script> <script type="text/javascript"> // //判断窗体是否最大化 // if (window.screen) {//判断浏览器是否支持window.screen判断浏览器是否支持screen // var myw = screen.availWidth; //定义一个myw，接受到当前全屏的宽 // var myh = screen.availHeight; //定义一个myw，接受到当前全屏的高 // window.moveTo(0, 0); //把window放在左上脚 // window.resizeTo(myw, myh); //把当前窗体的长宽跳转为myw和myh // } //弹出隐藏层 function ShowDiv(show_div, bg_div) { document.getElementById(show_div).style.display = 'block'; document.getElementById(bg_div).style.display = 'block'; var bgdiv = document.getElementById(bg_div); bgdiv.style.width = document.body.scrollWidth; $("#" + bg_div).height($(document).height()); }; //关闭弹出层 function CloseDiv(show_div, bg_div) { document.getElementById(show_div).style.display = 'none'; document.getElementById(bg_div).style.display = 'none'; $("#country").val($("#name").val()); }; //窗口大小改变时 $(window).resize(function() { if (!$('#MyDiv').is(':hidden')) popup(); }); //重新设置遮罩层的高和宽 function popup() { var maskHeight = $(document).height(); var maskWidth = $(window).width(); $('#fade').css({ height: maskHeight, width: maskWidth }).show(); } </script> <style type="text/css"> .black_overlay { display: none; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: black; z-index: 1001; -moz-opacity: 0.5; opacity: 0.5; filter: alpha(opacity=50); -khtml-opacity: 0.5; } .white_content { display: none; position: fixed; top: 10%; left: 10%; width: 80%; height: 80%; border: 16px solid lightblue; background-color: white; z-index: 1002; overflow: auto; } <! -- .white_content_small { display: none; position: fixed; top: 20%; left: 30%; width: 40%; height: 50%; border: 16px solid lightblue; background-color: white; z-index: 1002; overflow: auto; } -- ></style> </head> <body> 国家： <input id="country" type="text" /> <input id="Button1" type="button" value="选择国家" onclick="ShowDiv('MyDiv','fade')" /> <!--弹出层时背景层DIV--> <div id="fade" class="black_overlay"> </div> <div id="MyDiv" class="white_content"> <div style="text-align: right; cursor: default; height: 40px;"> <br /> <span style="font-size: 16px; cursor: pointer; border: black 1px solid; margin-bottom: 1px;" onclick="CloseDiv('MyDiv','fade')">关闭</span> </div> <input type="text" id="name" /> <input type="button" id="save" value="保存" onclick="CloseDiv('MyDiv','fade')" /> </div> <br /> </body> </html>
示例图：
