The title of a document may be set statically by providing a element in the area of the document. But what if you want to set it programatically? Setting document.title = "..." may work client-side, but since it does not change the DOM, it will not work server-side. To this end, Jaxer provides a convenience function which works both server- and client-side, and (as far as we've tested) across browser vendors. Simply use Jaxer.setTitle("...") in your code.