function showMediaPlayer(seq, cg, a_width, a_height) {
	var a_src    = "/podcast.do?cmd=showInit&seq=" + seq + "&cg=" + cg;
	a_width = 700;
	a_height = 520;
	var winl     = (screen.width  - a_width) / 2;
	var wint     = (screen.height - a_height) / 2;
	var winprops = 'height='+a_height+',width='+a_width+',top='+wint+',left='+winl+',resizable=no,scrollbars=no';
	var popup_handle = window.open(a_src, 'FLVPlayer', winprops);

	return popup_handle ;
}