function flexWindow (url, name, features, myWidth, myHeight, isCenter) {

	if (features == "none") {
		features = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no";
	}
	
	if (features == "all") {
		features = "toolbar=yes,location= yes,directories= yes,status= yes,menubar= yes,scrollbars= yes,resizable= yes";
	}

	if (window.screen)
	if (isCenter)
	if (isCenter == "true") {
		var myLeft	=	(screen.width - myWidth) / 2;
		var myTop	=	(screen.height - myHeight) / 2;
		features	+=	(features != '') ? ',' : '';
		features	+=	',left=' + myLeft + ',top=' + myTop;
	}
	window.open (url, name, features + ((features != '') ? ',' : '') + 'width=' + myWidth + ',height=' + myHeight);
}