function callRadioSpot(whichSpot) {
    retrieveFlashMovieName("audio_player").selectRadioSpot(whichSpot);
}

function retrieveFlashMovieName(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
	} else {
		if (document[movieName].length != undefined) {
			return document[movieName][1];
		}
		return document[movieName];
	}
}