$(document).ready(function () {
	var style = 'easeOutExpo';
	var default_left = Math.round($('#lava li.selected').offset().left - $('#lava').offset().left);
	var default_width = $('#lava li.selected').width();
	$('#box').css({left: default_left});
	$('#box .head').css({width: default_width});
	$('#lava li').hover(function () {
		left = Math.round($(this).offset().left - $('#lava').offset().left);
		width = $(this).width(); 
		$('#box').stop(false, true).animate({left: left},{duration:1000, easing: style});	
		$('#box .head').stop(false, true).animate({width:width},{duration:1000, easing: style});	
	}).click(function () {
		$('#lava li').removeClass('selected');	
		$(this).addClass('selected');
	});
	$('#lava').mouseleave(function () {
		default_left = Math.round($('#lava li.selected').offset().left - $('#lava').offset().left);
		default_width = $('#lava li.selected').width();
		$('#box').stop(false, true).animate({left: default_left},{duration:1500, easing: style});	
		$('#box .head').stop(false, true).animate({width:default_width},{duration:1500, easing: style});		
	});
});