If you take a look at my current sidebar (right) and see the heading Google Search you’ll notice that when you click it the Google Search box show’s into view.

Let me show you how this is done.

First make sure that your WordPress site is calling jQuery, buy pluggin this code into our header.php file above the <?php wp_head(); ?> text:

<?php wp_enqueue_script('jquery'); ?>

Then anywhere above the </head >, plug this code in:

<script type="text/javascript">
jQuery(document).ready(function() {
 // hides the slickbox as soon as the DOM is ready
  jQuery('#toggle-search').hide();

 // toggles the slickbox on clicking the noted link
  jQuery('a#slick-slidetoggle').click(function() {
	jQuery('#toggle-search').slideToggle(400);
	return false;
  });
});
</script>

That’s simple, huh. Okay now lets write the Search code:

<h2><a href="#" id="slick-slidetoggle">Google Search</a></h2>
	<div id="toggle-search" style="padding:10px;">
    <form method="get" id="search" action="<?php bloginfo('home'); ?>/">
        <div>
            <input type="text" value="Enter Keyword" onclick="this.value='';" name="s" id="s" />
            <input type="text" name="search-button" id="search-button" value="<?php _e('Search') ?>" />
        </div>
    </form>
</div>

That’s it.