function getInternetExplorerVersion() // Returns the version of Windows Internet Explorer or a -1 // (indicating the use of another browser). { var rv = -1; // Return value assumes failure. if (navigator.appName == 'Microsoft Internet Explorer') { var ua = navigator.userAgent; var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})"); if (re.exec(ua) != null) rv = parseFloat( RegExp.$1 ); } return rv; } function checkIEVersion() { var msg = "You're not using Windows Internet Explorer."; var ver = getInternetExplorerVersion(); if ( ver> -1 ) { if ( ver>= 8.0 ) msg = "You're using Windows Internet Explorer 8."; else if ( ver == 7.0 ) msg = "You're using Windows Internet Explorer 7."; else if ( ver == 6.0 ) msg = "You're using Windows Internet Explorer 6."; else msg = "You should upgrade your copy of Windows Internet Explorer"; } alert( msg ); }
------解决方案-------------------- 你是想直接点你那个提示后一键自动安装?不可能
------解决方案-------------------- 你可以加一个下载链接,不过真正的在线直接升级是要判断出操作系统和语言版本后直接推荐合适的版本的
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