title: populate text box on click of 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 'Yes' radio button, I want the text 'Yes' put in the textbox, and if they select another radio button I want it to be cleared.</p>
  
  <p>Can anyone help me??</p>