function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function log() {
	if (readCookie('authenticated') == '1') {
		document.location = '?logoff';
	} else {
		document.location = '?login';
	}
}

function playAudio(file) {
	window.open('/player.php?f='+escape(file), 'player', 'width=407, height=190, resizable=yes, scrollbars=no, toolbar=no, location=no');
}