function getCalculatedHeader() {
	var index = $('#header').find('li.active').index();
	
	return (index == -1 || index == 0 || index == 6) ? -470 : (index*94-470);
}

(function($){
	$(function(){
		$('#header-people').css('background-position','0 ' + getCalculatedHeader() + 'px');
		$('#header').find('li').each(function(k,v){
			$(v).mouseenter(function(){
				$('#header-people').css('background-position','0 ' + (~~k*94-470) + 'px');
			})
		});
		$('#header').find('li:last').each(function(k,v){
			$(v).mouseenter(function(){
				$('#header-people').css('background-position','0 ' + '-470' + 'px');
			})
		});
		$('#header').find('ul').mouseleave(function(){
			$('#header-people').css('background-position','0 ' + getCalculatedHeader() + 'px');
		});
	});
})(window.jQuery);