function swap(id,On) {
	if (!On || !id) {
		On = false;
	}
	switch(id) {
		case 1: //normal
			px = "0";
			break;
		case 2: //
			px = "150";
			break;
		case 3: //
			px = "300";
			break;
		case 4: //
			px = "450";
			break;
		case 5: //
			px = "600";
			break;
		case 6: //
			px = "750";
			break;
		case 7: //
			px = "900";
			break;
		case 8: //
			px = "1050";
			break;
		case 9:
			px = "1200";
			break;
		default:
			px = "0";
			break;
	}
	position = "-" + px + "px 0px";
	if (On) {
		document.getElementById("hexagon").style.backgroundPosition = position;
	} else {
		document.getElementById("hexagon").style.backgroundPosition = "0 0";
	}
}