title: Add onblur event to ASP.Net MVC's Html.TextBox
body: <p>What's the correct syntax for an HTML helper (in MVC2) to define an onblur handler where the textbox is generated with code like:</p>
  
  <pre><code>&lt;%=Html.TextBox(
      "ChooseOptions.AddCount" + order.ID,
      (order.Count &gt; 0) ?  AddCount.ToString() : "",
      new { @class = "{number: true}  small-input" }
  )
  </code></pre>