title: Calling a function of a parameter list
body: <p>I am new to javascript, and was wondering how I would go about calling a function variable. In the following code example, I would like to be able to call the add function of the fileupload control and pass my own data. How would I go about doing this? Thank you.</p>
  
  <p>Here is a butchered version of the blueimp fileupload code that I am trying to call the add() function for.</p>
  
  <pre><code>// The UI version extends the file upload widget
  // and adds complete user interface interaction:
  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
   options: {
    autoUpload: false,
    add: function (e, data) {
    //function stuff
    }
  
   }
  </code></pre>