title: system.web.mvc.htmlhelper does not contain a definition of content
body: <p>I am trying to create an asp.net MVC 3 Razor helper under app_code folder like this:</p>
  
  <pre><code>@using System.Web.Mvc;
  
  @helper Script(string scriptName, System.Web.Mvc.HtmlHelper url){    
        &lt;script src="@url.Content"~/Scripts/" + scriptName)" type="text/javascript"&gt;&lt;/script&gt;
  }
  </code></pre>
  
  <p>but I am getting error that:</p>
  
  <p>system.web.mvc.htmlhelper does not contain a definition of content</p>
  
  <p>at following line:</p>
  
  <pre><code> &lt;script src="@url.Content"~/Scripts/" + scriptName)" type="text/javascript"&gt;&lt;/script&gt;
  </code></pre>