add a conditional to this one page

[zmmmzz]

Is there a way I can add a conditional to this page so I can customize it?

mywebsite.com/login.php?do=logout

I know I can use
<if condition="THIS_SCRIPT == login"></if>

but that includes all pages inside the login script.
How can I add changes to only that page?

[Opserty]

<if condition="(THIS_SCRIPT == login) AND ($_REQUEST['do'] == 'logout')">

Should work.

[zmmmzz]

thanks so much Opserty!!!!