$(document).ready(function() {
	var initial = $("#navigation").css("background-position");
	
	$('#navigation #b1').mouseover(function() { $('#navigation').css('background-position', '0px 0px'); });
	$('#navigation #b1').mouseout(function() { $('#navigation').css('background-position', initial); });
	
	$('#navigation #b2').mouseover(function() { $('#navigation').css('background-position', '0px -64px'); });
	$('#navigation #b2').mouseout(function() { $('#navigation').css('background-position', initial); });
	
	$('#navigation #b3').mouseover(function() { $('#navigation').css('background-position', '0px -128px'); });
	$('#navigation #b3').mouseout(function() { $('#navigation').css('background-position', initial); });
	
	$('#navigation #b4').mouseover(function() { $('#navigation').css('background-position', '0px -192px'); });
	$('#navigation #b4').mouseout(function() { $('#navigation').css('background-position', initial); });
	
	$('#navigation #b5').mouseover(function() { $('#navigation').css('background-position', '0px -256px'); });
	$('#navigation #b5').mouseout(function() { $('#navigation').css('background-position', initial); });	
});