Elgg Login Popup Box is a Custom modification of login links or images on Elgg powered sites with lightBox effect. When user clicks on any “login” link or image, transparent box pops out in the center of the page with login form inside.

No need to have login form on your page which frees you from the constraints of the layout. By placing a login link in the header for example, visitors can login from any page not just from homepage where normally login form is displayed on Elgg site.