How to made changes in Sign In/Join pop up

Hello,

I want to include social login (from another plugin) to the Sign In/ Join pop up box which comes on Top Menu. Can I know where will I find the file to insert plugin code? Where can I find the file to modify Sign In/ Join popup box? Please do the needful.

HI

The login wedged is generated in td-login-modal.php file: http://screencast.com/t/f0CEKZaQ0e96 If the plugin used generate shortcodes you can use do_shortcode function to insert it: http://screencast.com/t/hbpKfAbk
Note that we didn’t tested any social logins plugin with our theme and we can’t guarantee that they will work sine with our theme.

Thanks!