def has_cover_image?(check = nil)
    	post = obtain_record(check)
    	!post.blank? && !post.cover_image.blank? ? true : false
    end
def has_cover_image?(check = nil)
    	post = obtain_record(check)
    	!post.blank? && !post.cover_image.blank? ? true : false
    end
returns a boolean as to wether the post has cover image
 Params:
 +check+:: ID, post_slug, or post_title - if this is nil it will use the @content variable (the current page)