Get page number of multistep webform in tpl.php I have a multistep webform that I would like to display a video only on page one. 

I am trying to find a reliable variable that will only be available on the first page. 

I have tried this in hook_form_alter but it is unreliable when the user navigates back to a previous page. It works initially. Page one video shows, page two no video, back to page one no video, page two video shows. 

I am using drupal_add_js to add a display:none on the video div when page_number > 1, but it isn't working as I expected. Any ideas?
I hacked it and used jquery to hide the div when there is an existence of a previous page class.