how to show loading screen and login screen in archlinux

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https://bbs.archlinux.org – if i want when starting computer, after the grub select then show loading screen, after loading screen will directlt jump into login user page, what should i install?currently my pc is pentium 4 2.6ht, 512mb, geforce fx5700, 80gb hdd. install xfce4. Dogs1985 https://bbs.archlinux.org/profile.php?id=15092 2013-08-24T13:37:53Z (HowTos)