switch (test) {
	case "a":
	case "b":
		console.log(test);
		break;
	default:
		alert("Error");
		break;
	case "c":
}
/**************************************************/
switch(test){case "a":case "b":console.log(test);break;default:alert("Error");break;case "c":}
/**************************************************/
switch ( test )
{
	case "a":
	case "b":
		console.log( test );
		break;
	default:
		alert( "Error" );
		break;
	case "c":
}