var newWindow1
var newWindow2
var newWindow3

function openWindow1(){
	newWindow1=window.open("buterfly.html","My_Window1","width=550,height=540,top=50,left=60");
	closeWindow2();
	closeWindow3();
}

function closeWindow1(){
	if(newWindow1 && !newWindow1.closed){newWindow1.close()}
}

function openWindow2(){
	newWindow2=window.open("naughty.html","My_Window2","width=350,height=590,top=50,left=60");
	closeWindow1();
	closeWindow3();
}

function closeWindow2(){
	if(newWindow2 && !newWindow2.closed){newWindow2.close()}
}

function openWindow3(){
	newWindow3=window.open("worm.html","My_Window3","width=700,height=620,top=50,left=60");
	closeWindow1();
	closeWindow2();
}

function closeWindow3(){
	if(newWindow3 && !newWindow3.closed){newWindow3.close()}
}