title: How to show an icon after textfield as a "Help" to enter the values into the textfield
body: <p>I am using Extjs 4.1</p>
  
  <p>I have a form with some textfields. </p>
  
  <p>I want to show a help icon beside this textfield for allowing the user to enter the correct value, while the form is being displayed.</p>
  
  <p>Can any body help me in solving this.</p>