vector - Customizing Popups in Openlayers

Is it possible to customize the shape of popups in OpenLayers? For example, I am creating a pop-up using the following approach:

var popup = new OpenLayers.Popup.FramedCloud(

                "popup",
                OpenLayers.LonLat.fromString(feature.geometry.toShortString()),
                null,
                '
'+feature.data.Name + '
test.url' + '
',
                null,
                true
            );

This creates a popup with the following appearance:

Is it possible to change from the rounded corners and a curved 'connection' to a more square pop-up?

Answer

beside all answer you can make your popup as google map popup style. check out this link which will help you to make g-style popup...

popup script codes,

popup images,

and so css...

i hope it helps you..