Switching styles (Class) on a function that show and hide a div tag content

Tags: jquery,css

Problem :

I see a lot of resource on show/hide content using JQuery but what I don't know is how I can switch the style on this function as well. I can switch the text that display but I am using a button as a background image in a anchor tag.

Here is what I need to do. The button is default to Show More but When the button is click the content is visible; I would like to switch the class/style so that the button indicate Show Less.

Finally, how do I add this to more than one area in the page, do I need to create separate functions for each area?

Here is the JQuery:

<script type="text/javascript">
$(document).ready(function() { 


<a href="#/" class="readmore readless">Read Full Article</a>

<div id="additionalContentBox">
<p>pulvinar tellus. Maurtis commodo urna at dui bibendum quis euismod velit egestas. Vestibulum ante ipsum primis in faucibus orci luctus et. ante ipsum primis in faucibus</p>

Finally, the CSS:

    display: block;
    background-image: url(img/readmore15.png);
    text-indent: -10000px;
    background-repeat: no-repeat;
    background-position: bottom left;
    display: block;
    height: 18px;
    line-height: 18px;
    width: 100px;
    margin-left: 4px;
    margin-top: 4px;
    margin-bottom: -14px;

    background-image: url(img/readmore15.png);
    background-position: top left;

Solution :

You could try something simple, like :


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