ruby on rails if statement on template

<% @videos.each_with_index do |video, index| %>

 <%if(@video.videotype = "vimeo") %>
 <iframe width="720" height="480" src="//player.vimeo.com/video/<%=video.videourl  %>"    frameborder="0" id="player2" ></iframe>

<% else %>
 <% if(@video.videotype = "youtube") %>
      <iframe width="720" height="480" src="//www.youtube.com/embed/<%=video.videourl %>" frameborder="0" id="player1"></iframe>
<% end %>
<% end %>

 </div>
<% end %>

What is wrong with this if else? all my videos display as vimeo player, but the videotype it's ok on database...