$(document).ready(function() {
	$('.why_sb ul li').click(function(){
		var $id = $(this).attr('id');
		$('#about_content').fadeOut('fast',function(){
			switch($id){
				case "do":
					$('#about_content').load('about/do.html');
					break;
				case "different":
					$('#about_content').load('about/different.html');
					break;
				case "that":
					$('#about_content').load('about/that.html');
					break;
				case "service":
					$('#about_content').load('about/service.html');
					break;
				case "pricing":
					$('#about_content').load('about/pricing.html');
					break;
			}
			$('#about_content').fadeIn('fast');
		});
	});
	$('#about_content').load('about/do.html');
});