Redirecting user-login-form on certain page
There are several methods to redirect user to specified url after login

You can use Rules

Events: User has logged in.&lt;br/&gt;
Condition: User has role&lt;br/&gt;
Actions: Page redirect&lt;br/&gt;&lt;br/&gt;


Another one with drupal api:

   function hook_user_login(&amp;$edit, $account) {   
     $edit['redirect'] = 'yourpath';
  }


if it not worked try to change $GLOBALS['destination'] with

function hook_user_login(&amp;$edit, $account)  {
  $GLOBALS['destination'] = 'yourpath';
}


Also you can use Login Redirect module 


  Overview A simple module providing a method to redirect users
  according to an URL-defined parameter after logging in. Allows
  redirects toward non-Drupal location.
  
  Features

Lightweight and minimal configuration. No module dependencies!
Allows custom URL parameter name
Filters XSS URL input