Redmine

<% if @issue.new_record? %>

<p><%= f.select :tracker_id, @project.trackers.collect {|t| [t.name, t.id]}, :required => true %></p>

<%= observe_field :issue_tracker_id, :url => { :action => :new },

                                     :update => :content,

                                     :with => "Form.serialize('issue-form')" %>

<% end %>

<div id="issue_descr_fields" <%= 'style="display:none"' unless @issue.new_record? || @issue.errors.any? %>>

<% if @issue.new_record? %>

<p><label><%=l(:label_attachment_plural)%></label><%= render :partial => 'attachments/form' %></p>

<% end %>

<%= wikitoolbar_for 'issue_description' %>

<% labelled_tabular_form_for :issue, @issue, 

                             :html => {:multipart => true, :id => 'issue-form'} do |f| %>

    <%= error_messages_for 'issue' %>

    <%= render :partial => 'issues/form', :locals => {:f => f} %>

    <%= submit_tag l(:button_create) %>

    <%= link_to_remote l(:label_preview), 

                       { :url => { :controller => 'issues', :action => 'preview', :project_id => @project, :id => @issue },