orbit4-5/app/views/pages/new.html.erb

<%= form_for @page, url: {action: "create"},:class =>"form-horizontal", :remote => true do |f| %>
  <% if params[:type] == "page" %>
    <%= render "form", {:f=> f} %>
  <% elsif params[:type] == "link" %>
    <%= render "form_link", {:f=> f} %>
  <% end %>
  
  <div class="form-actions">
    <a href="javascript:$.pageslide.close()" class="btn btn-small"><%= t(:cancel) %></a>
    <%= f.submit t(:submit), class: 'btn btn-primary btn-small' %>
  </div>
<% end %>
<script type="text/javascript"> 
$(document).ready(function(){
  var pageids = <%= Page.all.collect{|page| page.page_id}.to_json.html_safe %>
  var fromvalidator = new FormValidator($("#new_page"));
  fromvalidator.validate_functions.pageid_validation = function(value){
    return (pageids.indexOf(value) == -1 ? true : false);
  }
})
</script>