如果 inner HTML = X = 在 div XXX 中显示 XX

If inner HTML = X = display XX in div XXX

我正在尝试这样做。 如果 div with id javascript has X inner inner HTML then insert XX in div with id XXX.

有人可以帮帮我吗?谢谢!

<div id="XXX">XX</div>

<div id="javascript"><?php include 'TEST.php'; ?></div>

<script>
window.setInterval(function() {  
    httpGetAsync('TEST.php', function(text) {  
        if (document.getElementById("javascript").innerHTML == "X") { 
document.getElementById("XXX") = "XX";
        } 

    });  
}, 10000);
</script>

使用这个

document.getElementById("XXX").innerHTML = "XX";