prevent double note submit

app/views/notes/_form.html.haml

@@ -25,4 +25,4 @@
       
     .clear
     %br
-    = f.submit 'Add note', :class => "lbutton vm"
+    = f.submit 'Add note', :class => "lbutton vm", :id => "submit_note"

app/views/notes/_notes.html.haml

@@ -9,6 +9,15 @@
   $('.delete-note').live('ajax:success', function() {  
     $(this).closest('li').fadeOut(); });  
 
+  $("#new_note").live("ajax:before", function(){
+    $("#submit_note").attr("disabled", "disabled"); 
+  })
+
+  $("#new_note").live("ajax:complete", function(){
+    $("#submit_note").removeAttr("disabled"); 
+  })
+  
+
 - if ["issues", "projects"].include?(controller.controller_name)
   :javascript
     $(function(){

app/views/notes/create.js.haml

@@ -6,3 +6,6 @@
 - else
   :plain
     $("#new_note").replaceWith("#{escape_javascript(render('form'))}");
+
+:plain 
+  $("#submit_note").removeAttr("disabled");