misfo/application_helper.rb

## _default.js.erb
$(function() {
  alert("Hello from <%= params[:action] %>");
});

## _index.js.erb
$(function() {
  alert("<%= Rails.version %>");
});

## application.html.erb
<html>
  <head>
    <title>Super Awesome!!!11</title>
    <%= javascript_include_tag 'jquery-1.3.2' %>
    <%= yield :head %>
    <%= default_javascript %>
  </head>
  <body>
    <%= yield %>
  </body>
</html>

## application_helper.rb
module ApplicationHelper
  def default_javascript
    js = ""
    begin
      js << render(:partial => "default.js")
    rescue ActionView::MissingTemplate
    end
    begin
      js << render(:partial => "#{params[:action]}.js")
    rescue ActionView::MissingTemplate
    end
    javascript_tag(js) unless js.blank?
  end
end
	$(function() {
	alert("Hello from <%= params[:action] %>");
	});
	<html>
	<head>
	<title>Super Awesome!!!11</title>
	<%= javascript_include_tag 'jquery-1.3.2' %>
	<%= yield :head %>
	<%= default_javascript %>
	</head>
	<body>
	<%= yield %>
	</body>
	</html>
	module ApplicationHelper
	def default_javascript
	js = ""
	begin
	js << render(:partial => "default.js")
	rescue ActionView::MissingTemplate
	end
	begin
	js << render(:partial => "#{params[:action]}.js")
	rescue ActionView::MissingTemplate
	end
	javascript_tag(js) unless js.blank?
	end
	end