var newPt = map.toScreen(tileResults.features[0].geometry.getExtent().getCenter()); map.infoWindow.move(newPt);
dojo.require("esri.dijit.InfoWindow");
.....
var infoWindow = new esri.esri.dijit.InfoWindow({}, dojo.create("div", null, map.root));
map.infoWindow.resize(625, 240);
infoWindow.startup();
map.setInfoWindow(infoWindow);