unified js for dtext previews

app/views/dtext/_form.html.erb

@@ -0,0 +1,16 @@
+<!-- 
+- name
+- input_id
+- input_name
+- preview_id
+- value
+ -->
+<div class="input text optional">
+  <label class="text optional" for="<%= input_id %>"><%= name %></label>
+
+  <div class="dtext-previewable">  
+    <textarea id="<%= input_id %>" class="text optional" rows="20" name="<%= input_name %>" cols="30"><%= value %></textarea>
+    <div id="<%= preview_id %>" class="dtext-preview"></div>
+  </div>
+   <span class="hint">All text is formatted using <%= link_to "DText", wiki_pages_path(:title => "help:dtext") %></span>
+</div>

app/views/dtext/_help.html.erb

@@ -22,7 +22,8 @@ Or alias a URL: [url=http://www.google.com]Google[/url]
 
 A [[wiki link]] (underscores are not needed).
 
-A {{post link}}. Alternatively, post #1234 (also works with forum posts, comments and pools).
+A {{post link}}. Alternatively, post #1234.
+Also works with forum posts, comments and pools.
 
 <%= link_to "Read more", wiki_pages_path(:title => "help:dtext") %>.
   </pre>