');
$('#show3').css('display','none');
$('#show4').css('display','none');
//nav2,nav3,nav4 取消激活...grid菜单的内容,home,search,info都隐藏
$('#show1').css('display','none');
$('#show2').css('display','');...$('#show3').css('display','none');
$('#show4').css('display','none');
//nav1,nav3,nav4 取消激活...','none');
$('#show2').css('display','none');
//显示我search菜单的内容,home,grid,info都隐藏
$('#show3')...','none');
$('#show2').css('display','none');
$('#show3').css('display','none');
//显示我info菜单的内容