DrDoc - 6:14 pm on Apr 24, 2009 (gmt 0)

In an attempt to bring some life to this forum, and to regain our position as one of the most authoritative resources on all things JavaScript and AJAX, we are launching this simple Q&A section.

What is this?

This thread serves to become a quick reference thread on JavaScript. If you see a phrase you do not understand or recognize, you can turn to this thread to either:
a) find the meaning
b) ask about the meaning, if it has not been covered before

The first post will contain a linked Table of Contents to each question and its answer.

What is this NOT?

This thread is not a place to discuss specific quirks or problems related to a given script. General compatibility questions may be asked, as long as they are generic, and not specific to certain code. Like any other threads in this forum, all posts must adhere to the WebmasterWorld TOS [webmasterworld.com] and the JavaScript Forum Charter [webmasterworld.com].

Only questions and answers should be posted. All other posts may be removed without notice at the best judgement of the moderators.

How will it work?

If you have a question: Simply post your question using as few words as possible. Please label your post with "Question:" so that it can be easily identified. LIMIT ONE QUESTION PER POST.

Example:

Question: What is the DOM?

If you have an answer: Before posting your answer, please locate the post number for the question you are about to answer. This can be found on the left hand side of the post itself. The post number for this post, for example, is: 3899868

Please label your post with "Answer to post #0000000:" where 0000000 is the post number.

Example:

Answer to post #3899868: Your detailed (albeit as short as possible) and correct answer goes here.

The original question will be updated with your answer, giving you credit for the answer. Each question will also be linked to below. There will be a separate section for answered and unanswered posts.