var PierFish = {};
PierFish.Home = 
	function() {
		PierFish.Navigation();
	};
PierFish.Navigation =
	function() {
		var navigationImage = $( '#header' ).find( 'OL' ).find( 'IMG' );
		navigationImage.hover(
			function() {
				var imageSource = 
					$( this )
						.attr( 'src' )
						.replace( '_off', '_on' );
				$( this ).attr( 'src', imageSource );
			},
			function() {
				var imageSource = 
					$( this )
						.attr( 'src' )
						.replace( '_on', '_off' );
				$( this ).attr( 'src', imageSource );
			}
		);
	};