问题没有得到完全的解决，仅能解决刷新的第一次点击无关闭网页

去除关闭网页

具体代码如下

        var wAlert = window.alert;window.alert = function (message) {try {var iframe = document.createElement("IFRAME");iframe.style.display = "none";iframe.setAttribute("src", 'data:text/plain,');document.documentElement.appendChild(iframe);var alertFrame = window.frames[0];var iwindow = alertFrame.window;if (iwindow == undefined) {iwindow = alertFrame.contentWindow;}iwindow.alert(message);iframe.parentNode.removeChild(iframe);}catch (exc) {return wAlert(message);}}var wConfirm = window.confirm;window.confirm = function (message) {try {var iframe = document.createElement("IFRAME");iframe.style.display = "none";iframe.setAttribute("src", 'data:text/plain,');document.documentElement.appendChild(iframe);var alertFrame = window.frames[0];var iwindow = alertFrame.window;if (iwindow == undefined) {iwindow = alertFrame.contentWindow;}iwindow.confirm(message);iframe.parentNode.removeChild(iframe);}catch (exc) {return wConfirm(message);}}