how can i inherit this file @shammeem?

You can inherit their templates "web.login_layout" and "web.menu_secondary"

<template id="custom_login_layout" inherit_id="web.login_layout" >

<xpath expr="expression to that" position="replace">

Your Footer

</xpath>

</template>

But here problem is the cutomization of web module is not simple. That may make great problems . You may loss your database.

I shall tell you a simple way, Do you have addons? Create if not. Then copy the whole web module

and paste in your addons. Now your web module will be overridden. Old web module will not shown in app list .You change the name in __openerp__.py to verify. You can edit any thing without loss web module :)