[Javascript] Show and hide multiple div tags

[Abyss - Information]

Perhaps - would it be best to put in an ID for each news item?

eg


<div class="News">
    <div id="NewsItem">
        <h2>News title 1</h2>
        <div class="BriefDescription"></div>
        <div class="ShowExtendedDescription"><a href="#" onclick="jsfncShowHideExtendedDescription('NI1234')">Show Extended Description for this event</a></div>
        <div id="NI1234" class="ExtendedDescription"></div>
    </div>

if so how would I pass the news item to the function? like i have in this example? as a string?

and how would i tell the browser to change the class for that particular div?

Thanks

Regards
Abyss
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