#CommentsController

	def edit

		@comment = Comment.find(params[:id])
	    @comment.body = params[:value]
	    @comment.save

	    render :text => params.to_json

	end

#Comment View

	<p class="comment_body" id="comment_<%= comment.id %>" name="comment_body"><%= comment.body %></p>
	<input type="hidden" class="comment_edit_path" value="<%= edit_setup_comment_path(@setup, comment) %>" />

#edit_setup_comment_path echoes out "/setups/44/comments/19/edit"

#and finally, the JS

		$(comment_body).editable(edit_path, {
			submitdata: {
				comment_id: comment_id
			},
			method: "put",
			indicator: 'Saving...',
			tooltip: 'Click to edit...',
			type: 'textarea',
			cancel: 'Cancel',
			submit: 'Save',
			onblur: 'ignore',
			width: '495px'
		});