更改数字的脚本给出错误

Question

<script type="text/javascript">
    var adiInit = "xxxx",
        adiRVO = true;
    var adiFunc = null;
    (function () {
        var adiSrc = document.createElement("script");
        adiSrc.type = "text/javascript";
        adiSrc.async = true;
        adiSrc.src = ("https:" == document.location.protocol ? "https://static-ssl" : "http://static-cdn") + ".responsetap.com/static/scripts/rTapTrack.min.js";
        var s = document.getElementById("script")[0];
        s.parentNode.insertBefore(adiSrc, s);
    })();
</script>

在页脚添加中，变量s变为空。所以在所有浏览器和电话号码中给出错误都没有改变。

http://prntscr.com/a0k1vt

我该如何解决呢。请尽快修复

Answer 1

尝试使用以下代替var s = document.getElementById("script")[0];

var s = document.getElementsByTagName("script")[0];