Signup steps with validation

app/views/signup/steps.html.erb

@@ -0,0 +1,55 @@
+<% case @step %>
+<% when 1 %>
+  <h2>Choose a username</h2>
+  <%= form_for @user, :url => signup_validate_url do |f| %>
+    <div class="field">
+      <p>
+        <%= f.label :cn, 'Username' %><br />
+        <%= f.text_field :cn, autofocus: true, autocomplete: "username" %>
+        <span class="at-sign">@</span>
+        <span class="domain">kosmos.org</span>
+      </p>
+      <% if @validation_error.present? %>
+        <p class="error-msg">Username <%= @validation_error %></p>
+      <% end %>
+    </div>
+    <div class="actions">
+      <p><%= f.submit "Continue" %></p>
+    </div>
+  <% end %>
+
+<% when 2 %>
+  <h2>What's your email?</h2>
+  <%= form_for @user, :url => signup_validate_url do |f| %>
+    <div class="field">
+      <p>
+        <%= f.label :email, 'Email address' %><br />
+        <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
+      </p>
+      <% if @validation_error.present? %>
+        <p class="error-msg">Email <%= @validation_error %></p>
+      <% end %>
+    </div>
+    <div class="actions">
+      <p><%= f.submit "Continue" %></p>
+    </div>
+  <% end %>
+
+<% when 3 %>
+  <h2>Choose a password</h2>
+
+  <%= form_for @user, :url => signup_validate_url do |f| %>
+    <div class="field">
+      <p>
+        <%= f.label :password, 'Password' %><br />
+        <%= f.password_field :password, autofocus: true %>
+      </p>
+      <% if @validation_error.present? %>
+        <p class="error-msg">Password <%= @validation_error %></p>
+      <% end %>
+    </div>
+    <div class="actions">
+      <p><%= f.submit "Continue" %></p>
+    </div>
+  <% end %>
+<% end %>