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From: FAQ server on 9 Aug 2010 19:00
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FAQ Topic - Why doesn't the global variable "divId" always
refer to the element with id="divId"?
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Microsoft introduced a shortcut that can be used to reference
elements which include an `id` attribute where the
`id` becomes a globally-accessible property. Some browsers reproduce
this behavior. Some, most notably Gecko-based browsers (Netscape and Mozilla),
do so only in "quirks" mode. The best approach is the `document.getElementById`
method, which is part of the W3C DOM standard and implemented
in modern browsers (including IE from version 5.0). So an
element with `id="foo"` can be referenced
with:-

var el = document.getElementById("foo");

Note: make sure not to use the same `id` twice in the same document
and do not give an element a `name` that matches an `id`
of another in the same document or it will trigger bugs in MSIE <= 7 with
`document.getElementsByName` and `document.getElementById`.

<URL: https://developer.mozilla.org/en/Using_Web_Standards_in_your_Web_Pages/Using_the_W3C_DOM#Accessing_Elements_with_the_W3C_DOM
>
<URL: http://jibbering.com/faq/faq_notes/faq_notes.html#FAQN4_41>


The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/

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