Include OpenId in drupal

i want to create a OpenId login system like stackoverflow :) in drupal..By default, drupal doesn't offer this..is there any plugin that does this job?

EDIT:the user should ALSO be able to login with their yahoo, gmail, aol or blogger account..u guys can't understand my pro.. it's simple..i've openID enabled in my drupal 6. When i try to use my gmail or yahoo account,开发者_JAVA百科 it doesn't login.

What should i do for that?

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There is now a module that uses the Javascript OpenID Selector to add a similar visual interface and makes OpenID on Drupal much easier to use, the module is called OpenID Selector.

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Yes, there's a module for that.

But you added a drupal-6 tag, which suggests you're using Drupal 6; OpenID has been a core part of Drupal 6 for >2 years - it's documented in the handbook.

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OpenId already included in core in drupal 6, just enable it. For drupal5 you need to install appropriate module.