title: How do I set up a listener in jQuery/javascript to monitor a if a value in the textbox has changed?
body: <p>How do I set up a listener in jQuery/javascript to monitor a if a value in the textbox has changed? The value is fed into the textbox by a bar code scanner attached to the tablet,so each time an item is scanned the value in the textbox changes.I need to display some information based on the value in the textbox.</p>