javascript：在IE中getElementById问题 [英] javascript: getElementById problem in IE
问题描述
我正尝试使用JavaScript将单击事件附加到复选框。下面显示的是HTML和JS。
<！DOCTYPE HTML PUBLIC - // W3C // DTD HTML 4.01 Transitional / / EN>
< html>
< head>
< title>< / title>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< / head>
< body>
< input type =hiddenname =caution_cvalue =0>
< input type =checkboxid =caution_cname =caution_cvalue =1tabindex =120>
< script type =text / javascript>
var cb = document.getElementById（'caution_c'）;
cb.onclick = function（）{
alert（1）;
}
< / script>
< / body>
< / html>
问题是，在IE中，click事件不会触发。我已经缩小了问题的位置。问题是在复选框之前有一个隐藏的输入，并且这两个元素具有相同的名称。我不知道为什么这会导致问题（毕竟，我使用getElementById，而隐藏的元素甚至没有id）。
有没有此外，有没有一个很好的解决方法（我可以做 document.getElementsByName（'caution_c'）[1] ，但我不想...）
Internet Explorer对 id - 强烈建议将这两个属性视为相同。
您可以通过以下方式解决问题：1）确保文档中没有id / name冲突，或者2）覆盖IE的本地getElementById方法。
I am trying to attach a click event to a check box using JavaScript. Shown below is the HTML and JS.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<input type="hidden" name="caution_c" value="0">
<input type="checkbox" id="caution_c" name="caution_c" value="1" tabindex="120">
<script type="text/javascript">
var cb = document.getElementById('caution_c');
cb.onclick = function() {
alert(1);
}
</script>
</body>
</html>
The problem is that in IE, the click event does not fire. I have narrowed down the problem location. The issue is that there is a hidden input just before the check box and both these elements have the same name. I'm not sure why this is causing a problem(after all, I'm using getElementById and the hidden element does not even have an id).
Is there a valid reason for this type of behavior (IE only. Works fine in Firefox...as always :( )? Also, is there a good workaround (I could just do document.getElementsByName('caution_c')[1] but I don't want to...)
Internet Explorer gets confused over name and id - it is highly recommended to treat these two attributes as if they were the same.
You can fix it either by 1) ensure that there are no id/name conflicts in your document, or 2) override IE's native getElementById-method.
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