title: Populate textbox based on selected radio button
body: <p>I have 3 radio buttons, when one of them is selected I want to automatically put text in a textbox.
  For example, If the user selected the 'TBA' radio button, I want the text 'To Be Advised' put in the textbox, and if they select another radio button I want it to be cleared.</p>
  
  <p>Can anyone help me?? </p>
  
  <p><a href="http://jsfiddle.net/ej2hf/1/" rel="nofollow">http://jsfiddle.net/ej2hf/1/</a></p>
  
  <p>Thanks in advance!</p>