WP Login Button for current domain

Question

I want to make a link that goes to wp-login.php for whatever domain I'm at now. Something like:

<a href="http://<script>document.write(document.domain);</script>/wp-login.php">Login</a>

But I don't know how to write / format that properly.

Answer 1

<?php wp_loginout(); ?>

Or

<a href="http://<?php bloginfo('url'); ?>/wp-login.php">Login</a>

What am I missing?

http://codex.wordpress.org/Function_Reference/wp_loginout

http://codex.wordpress.org/Function_Reference/bloginfo

Answer 2

If it is for the same domain something like this would also suffice:

<a href="/wp-login.php">Login</a>

But if you have the Wordpress api available the wp_loginout() function is the best available option.