(function (win) { var isSupportPlaceholder = function () { var input = document.createElement('input'); return 'placeholder' in input; }; //判断是否是IE浏览器,包括Edge浏览器 var IEVersion = function() { //取得浏览器的userAgent字符串 var userAgent = navigator.userAgent; //判断是否IE浏览器 var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; if (isIE) { var reIE = new RegExp("MSIE (\\d+\\.\\d+);"); reIE.test(userAgent); var fIEVersion = parseFloat(RegExp["$1"]); if (fIEVersion < 10 || !isSupportPlaceholder()) { return true; } } return false; }; var Ajax = { get: function(url, fn) { // XMLHttpRequest对象用于在后台与服务器交换数据 var xhr = new XMLHttpRequest(); xhr.open('GET', url, true); xhr.onreadystatechange = function() { // readyState == 4说明请求已完成 if (xhr.readyState == 4 && xhr.status == 200 || xhr.status == 304) { // 从服务器获得数据 fn.call(this, xhr.responseText); } }; xhr.send(); } }; var Brand = { init: function (config , url , html) { try { var iframe = document.createElement(''); } catch (e) { var iframe = document.createElement('iframe'); iframe.name = 'brandFrame'; iframe.id = 'brandFrame'; } iframe.frameborder = "0"; iframe.scrolling = "no"; if(url != '') { iframe.src = url; } var style = { position: "fixed", "border": "0px", "z-index": "2247483647", "height": "440px", "width": "252px" }; var dotop = config.num; style["top"] = this.getTop(); switch (config.pos) { case 1 : style["left"] = "0px"; break; case 2 : style["right"] = "0px"; break; } style["marginTop"] = dotop + "px"; this.style(iframe, style); document.body.appendChild(iframe); if(url == '') { var iframedocument = document.all ? iframe.contentWindow.document : iframe.contentDocument; iframedocument.open(); iframedocument.write(html); iframedocument.close(); } }, style: function (obj, style) { for (var i in style) { obj.style[i] = style[i]; } }, getTop : function () { var myHeight = 0; if (typeof(window.innerHeight) == 'number') { //Non-IE myHeight = window.innerHeight; } else if (document.documentElement && (document.documentElement.clientHeight)) { //IE 6+ in 'standards compliant mode' myHeight = document.documentElement.clientHeight; } else if (document.body && (document.body.clientHeight)) { //IE 4 compatible myHeight = document.body.clientHeight; } var height = 440; return parseFloat((myHeight - height) / myHeight / 2).toFixed(2) * 100 + "%"; } }; //执行创建 var runBrand = function () { if(IEVersion()) { Brand.init({"pos":1, "num":0} , 'https://www.bsan.org.cn/popshow.html?sn=CY2022D8D5QG5KD95&pos=1' , ''); } else { Ajax.get('https://www.bsan.org.cn/popshow.html?sn=CY2022D8D5QG5KD95&pos=1', function (html) { Brand.init({"pos":1, "num":0} , '' , html); }); } }; runBrand(); //安全性检测,假如发现对象不见了或者body为空了,则重新画 var checkBrandSafe = function () { var needRun = false; var hasIframe = false; var iframmeCheck = document.getElementById("brandFrame"); if(!iframmeCheck || iframmeCheck === undefined || iframmeCheck === null) { needRun = true; } else { hasIframe = true; var iframeBody = window.frames["brandFrame"].document.getElementsByTagName("body"); if(!iframeBody || iframeBody === undefined || iframeBody === null || iframeBody.length < 1) { needRun = true; } else { var html = iframeBody[0].innerHTML; if(!html || html.indexOf("认证编号") === -1) { needRun = true; } } } if(needRun) { if(hasIframe) { iframmeCheck.parentNode.removeChild(iframmeCheck); } runBrand(); } setTimeout(checkBrandSafe , 3000); }; setTimeout(checkBrandSafe , 1000); })(window);