var mvflag = 0;
var loadflag = false;

function bg() {
	loadflag = true;
}

function off1() {
	if (loadflag) {
		id_1 = 'satwin1';
		id_2 = 'satwin2';
		id_3 = 'satwin3';
		id_4 = 'satwin4';
		id_5 = 'satwin5';
		id_6 = 'satwin6';
		document.getElementById(id_1).style.visibility = "visible";
		document.getElementById(id_2).style.visibility = "hidden";
		document.getElementById(id_3).style.visibility = "hidden";
		document.getElementById(id_4).style.visibility = "hidden";
		document.getElementById(id_5).style.visibility = "hidden";
		document.getElementById(id_6).style.visibility = "hidden";
	}
}

function off2() {
	if (loadflag) {
		id_2 = 'satwin2';
		id_3 = 'satwin3';
		id_4 = 'satwin4';
		id_5 = 'satwin5';
		id_6 = 'satwin6';
		document.getElementById(id_2).style.visibility = "visible";
		document.getElementById(id_3).style.visibility = "hidden";
		document.getElementById(id_4).style.visibility = "hidden";
		document.getElementById(id_5).style.visibility = "hidden";
		document.getElementById(id_6).style.visibility = "hidden";
	}
}

function off3() {
	if (loadflag) {
		id_3 = 'satwin3';
		id_4 = 'satwin4';
		id_5 = 'satwin5';
		id_6 = 'satwin6';
		document.getElementById(id_3).style.visibility = "visible";
		document.getElementById(id_4).style.visibility = "hidden";
		document.getElementById(id_5).style.visibility = "hidden";
		document.getElementById(id_6).style.visibility = "hidden";
	}
}

function off4() {
	if (loadflag) {
		id_4 = 'satwin4';
		id_5 = 'satwin5';
		id_6 = 'satwin6';
		document.getElementById(id_4).style.visibility = "visible";
		document.getElementById(id_5).style.visibility = "hidden";
		document.getElementById(id_6).style.visibility = "hidden";
	}
}

function off5() {
	if (loadflag) {
		id_5 = 'satwin5';
		id_6 = 'satwin6';
		document.getElementById(id_5).style.visibility = "visible";
		document.getElementById(id_6).style.visibility = "hidden";
	}
}

function off6() {
	if (loadflag) {
		id_6 = 'satwin6';
		document.getElementById(id_6).style.visibility = "visible";
	}
}