Validate Form Field using JQUERY
<p>I've a form field with one input field.</p>

<p>As soon as the user completes typing i need to make an ajax call and validate input on serverside.</p>

<p>I tired keyup, focusout, keydown and mouseup events but doesn't seem to work as expected. Could some one please suggest the best keyboard events to choose to resolve this. If the input is blank the error message should be shown as well.</p>
