function start_game(game)
{
	var url;
	var width;
	var height;
	var resizable;
	switch (game)
	{
	case "blackjack":
		url       = "/games/blackjack/frameset.htm";
		width     = 700;
		height    = 436;
		resizable = "yes";
		break;
		//--------------------------
	case "jewels":
		url       = "/games/jewels/game.htm";
		width     = 540;
		height    = 640;
		resizable = "no";
		break;
		//--------------------------
	case "kingpong":
		url       = "/games/kingpong/frameset.php";
		width     = 780;
		height    = 548;
		resizable = "yes";
		break;
		//--------------------------
	case "picaflor":
		url       = "/games/picaflor/game.htm";
		width     = 760;
		height    = 400;
		resizable = "yes";
		break;
		//--------------------------
	case "ross":
		url       = "/games/ross/frameset.htm";
		width     = 750;
		height    = 270;
		resizable = "no";
		break;
		//--------------------------
	case "skifliegen":
		url       = "/games/skifliegen/frameset.php";
		width     = 550;
		height    = 471;
		resizable = "no";
		break;
		//--------------------------
	case "wespen":
		url       = "/games/wespen/game.htm";
		width     = 700;
		height    = 625;
		resizable = "no";
		break;
		//--------------------------
	case "wuerfelmemory":
		url       = "/games/wuerfelmemory/game.htm";
		width     = 700;
		height    = 536;
		resizable = "no";
		break;
		//--------------------------
		// MOVIE-LAUNCHERS
		//--------------------------
	case "movie_schlumberger":
		url       = "/win/schlumberger_movie.htm";
		width     = 420;
		height    = 285;
		resizable = "no";
		break;
	default:
		return true;
	}
	window.open(url,
							game,
							"toolbar=no"
							+ ",location=no"
							+ ",directories=no"
							+ ",status=no"
							+ ",menubar=no"
							+ ",scrollbars=no"
							+ ",marginwidth=0,marginheight=0"
							+ ",resizable=" + resizable
							+ ",width="     + width
							+ ",height="    + height
							+ ",left="      + Math.max(0, Math.floor((screen.width  - width ) / 2))
							+ ",top="       + Math.max(0, Math.floor((screen.height - height) / 2))
							);
	return false;
}