function change_video(video) {
	var videoSelected = video+'_1500.flv';
	player.sendEvent('STOP');
	player.sendEvent('LOAD', {'file':videoSelected, 'streamer':'http://skat.allways.tv/xstream.php', 'type':'http'});
	player.sendEvent('PLAY', 'true');
	document.getElementById('videoPlaying').innerHTML = video;	
	document.getElementById('high_quality').style.fontWeight = 'bold'; 
	document.getElementById('medium_quality').style.fontWeight = 'normal'; 
}