my ipod is disabled how can i able to ??

If you've forgotten the passcode and the iPod shows a 'Disabled' message then you will need to connect it to the computer that you normally sync to and you should then be able to reset the iPod and re-sync your content to it (http://support.apple.com/kb/HT1212) - you may need to put the iPod into recovery mode : http://support.apple.com/kb/ht1808