How to use entity form in pop-up window?
Make sure you have 7.x-1.4 of the entityform module installed or this won't work.
Install the Modal operations module.
Install the Modal forms (with ctools)
Enable the Modal entityforms module that came as part of the modal module.
Create a link to your modal popup like this:




&lt;a href="/modal/entityform/YOUR_FORM_IDENTIFIER/nojs/0" class="ctools-use-modal ctools-modal-modal-popup-small"&gt;Open Entity Form in Popup!&lt;/a&gt;


I found this blog post very useful for figuring this out and getting it working.

If you cannot use version 7.x-1.4 for some reason then there is a patch here that some have had success with however I could not get it to work this method.