SEOAdsenseThemes.com » jQuery http://www.seoadsensethemes.com Search Engine Optimized (SEO), Adsense-Ready Free WordPress Themes Wed, 25 Aug 2010 06:11:27 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 WordPress Multi-Level Drop Down menu using jQuery http://www.seoadsensethemes.com/wordpress-multi-level-drop-down-menu-using-jquery/ http://www.seoadsensethemes.com/wordpress-multi-level-drop-down-menu-using-jquery/#comments Sat, 09 Aug 2008 14:53:28 +0000 Stanley http://www.seoadsensethemes.com/?p=23 WordPress jQuery Multi-Level Drop-Down Menu
Click here to view demo

As WordPress theme designers, we’re often faced between the choice of going for purely CSS drop-down menu or javascript drop-down menus in our struggle with cross-browser compatibility.

The aim of this short tutorial is help you build a simple multi-level drop-down menu in your WordPress theme using jQuery’s JavaScript library to ensure cross-browser compatibility.

When I first started to design WordPress themes, I went the pure-CSS way. I found a variety of cross-browser CSS-only drop-down menus at Stu Nicholls CSS Play and implemented his solutions into my themes. Some people do not like the way Stu hacked CSS to ensure cross-browser compatibility. It may be ugly but it works. And you can’t really use WordPress wp_list_pages() tag with Stu Nicholl’s CSS because the tag’s parameters could not reproduce the CSS hacks needed to make it work.

Later on, as I started to embrace more JavaScript in my WordPress themes, I decided to built my drop-down menu with a bit of jQuery Javascript help. It saved a lot of effort. No more unnecessary CSS hacks. Plays nice with WordPress wp_list_pages() tag. And WordPress installation already comes with jQuery library included. This is one of the main reasons why I chose jQuery among other Javascript libraries.

Anyway, I’m not here to convince you to use JavaScript for your WordPress drop-down menus. To those of you who are would like to use jQuery for your multi-level WordPress drop-down menu, I hope you’ll find the short tutorial below helpful.

Add this bit of JavaScript between the <head></head> HTML tags in your WordPress theme’s header.php (thanks to kriesi.at):

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

<script type='text/javascript'>
jQuery(document).ready(function() {
jQuery("#dropmenu ul").css({display: "none"}); // Opera Fix
jQuery("#dropmenu li").hover(function(){
jQuery(this).find('ul:first').css({visibility: "visible",display: "none"}).show(268);
},function(){
jQuery(this).find('ul:first').css({visibility: "hidden"});
});
});
</script>

The HTML. We will list the pages using WordPress default wp_list_pages() tag. I used it in header.php of my WordPress theme:

<ul id="dropmenu">
<?php wp_list_pages('sort_column=menu_order&amp;amp;amp;title_li='); ?>
</ul>

Now here’s the CSS:

<style type="text/css">
#dropmenu, #dropmenu ul {margin:0; padding:0; list-style-type:none; list-style-position:outside; position:relative; line-height:1.5em; z-index:300; width:100%; background:#fff; font-weight:bold;}
#dropmenu a {display:block; padding:0.25em 1em; color:#686868; border-right:1px solid #c8c8c8; text-decoration:none; background:#fff;}
#dropmenu a:hover {background:#888; color:#fff;}
#dropmenu li {float:left; position:relative;}
#dropmenu ul {position:absolute; display:none; width:12em; top:1.9em; left:-1px;}
#dropmenu ul a {border-left:1px solid #c8c8c8;}
#dropmenu li ul {border-top:1px solid #c8c8c8; width:14.1em;}
#dropmenu li ul a {width:12em; height:auto; float:left;  border-bottom:1px solid #c8c8c8;}
#dropmenu ul ul {top:auto;}
#dropmenu li ul ul {left:12em; margin:0px 0 0 10px;}
#dropmenu li:hover ul ul, #dropmenu li:hover ul ul ul, #dropmenu li:hover ul ul ul ul {display:none;}
#dropmenu li:hover ul, #dropmenu li li:hover ul, #dropmenu li li li:hover ul, #dropmenu li li li li:hover ul {display:block;}
</style>

The CSS styling provided is pretty much barebones. You can view another demo of WordPress jQuery Multi-Level Drop-Down Menu in action here.

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