请问一句JS脚本的兼容性问题,100分,急用

Question

<script>
var attachlist = parent.document.all("attachlist");
attachlist.innerHTML = "hello";
</script>

Answer 1

parent.document.all.attachlistID.value="hello";
或者parent.document.all.attachlistID.innerText="hello";

Answer 2

<script>
var attachlist = parent.document.getElementsByName("attachlist");
attachlist.innerHTML = "hello";
</script>

Answer 3

如果attachlist是id值不是name就
<script>
var attachlist = parent.document.getElementById("attachlist");
attachlist.innerHTML = "hello";
</script>