title: Fire onTextChanged event without AutoPostBack
body: <p>Assume I have two text boxes, one for the <code>password</code> and one for the <code>password confirmation</code>.</p>
  
  <p>Then, when I change the text in the <code>Confirm Password</code> text box, I'd like the back color of the password confirmation text box to get green or red when the confirmation is correct or incorrect.</p>
  
  <p>If I use <code>OnTextChanged</code> attribute, I need to enable <code>AutoPostBack</code> which refreshes the page (something that I don't want to happen). I researched and it seems that everyone recommends Javascript, as it may somehow help. </p>
  
  <p>My question is how can I perform this?</p>