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="control-group">
    	<div class="controls">
    	<% if params[:type] == "page" %>
			<%= f.submit "Create Page", :class=>"btn btn-primary" %>
		<% elsif params[:type] == "link" %>
			<%= f.submit "Create Link", :class=>"btn btn-primary" %>
		<% end %>
		</div>
	</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>