Get Next and Previous Elements in JavaScript array...

Posted by Belden on Stack Overflow See other posts from Stack Overflow or by Belden
Published on 2009-06-29T13:09:41Z Indexed on 2010/04/24 8:43 UTC
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JavaScript

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arrays

I have a large array, with non-sequential IDs, that looks something like this:

PhotoList[89725] = new Array();
PhotoList[89725]['ImageID'] = '89725';
PhotoList[89725]['ImageSize'] = '123';
PhotoList[89726] = new Array();
PhotoList[89726]['ImageID'] = '89726';
PhotoList[89726]['ImageSize'] = '234';
PhotoList[89727] = new Array();
PhotoList[89727]['ImageID'] = '89727';
PhotoList[89727]['ImageSize'] = '345';
Etc....

I'm trying to figure out, given an ID, how can I can get the next and previous ID... So that I could do something like this:

<div id="current">Showing You ID: 89726 Size: 234</div>
Get Prev Get Next

Obviously, if we're at the end or beginning of the array we just a message...

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