gistfile1.aw

<?php
class Fun_Stuff {

	function __construct()
	{
		$this->hooks();
	}
	
	function hooks()
	{
		add_action( 'wp_head', array( $this, 'css' ) );
		add_action( 'wp_head', array( $this, 'js' ) );
	}
	
	function js()
	{
		wp_enqueue_script( 'jquery' );
		wp_print_scripts();
		?>
		<script>
		jQuery(document).ready(function() {
			jQuery('.entry-content img').hover(
				function(){
					jQuery(this).addClass('largerthanlife');
				},
				function(){
					jQuery(this).removeClass('largerthanlife');
			});
		});
		</script>
		<?php
	}
	
	function css()
	{
		?>
		<style>
		.largerthanlife { width: 500px; height: 300px; }
		</style>
		<?php
	}
}
$whattawhat = new Fun_Stuff;