/**
* add header contributions for packaged resources.
*/
private void contributeDependencies(IHeaderResponse response)
{
response.renderJavascriptReference(new PackageResourceReference(YuiLib.class,
"yahoodomevent/yahoo-dom-event.js"));
response.renderJavascriptReference(new PackageResourceReference(AbstractCalendar.class,
"calendar-min.js"));
response.renderCSSReference(new PackageResourceReference(AbstractCalendar.class,
"assets/skins/sam/calendar.css"));
}