I've created a web page where I'm trying to pull data from the database. My requirement is to populate a combo box from the database automatically, i.e. as and when the db updates, the combo box needs to get updated. I have heard that it's possible with Ajax. Can any one give me some code samples for this. And I'm using servlets as my back end along with JSPs and JSTL to display. So I'll be grateful if anyone can help me with some sample code in Ajax with Java related technologies.