title: PHP: _POST and CSS, how to show an active link
body: <p>I have a site I'm building in PHP, and have a page that loads data dynamically from mySQL. It uses list items that the user clicks on, causing a _POST to the database, thus not allowing me to customize the CSS of the page they're now seeing. I'm wondering if there's a way to dynamically set the css class of the <code>&lt;li&gt;</code> they've clicked, as to highlight it. Problem is, if they press another list item, I have to un-highlight the old one. Anyone have input on the best way to go about this?</p>