name = 'ikkuna';
var popupWindow = "";

function popup(osoite) {
	if (!popupWindow.close && popupWindow.location) {
	popupWindow.location.href = address;
	}
	else {
	//Mihin kohtaan ruutua ikkuna asettuu, screen.height=ruudun pikselikorkeus
	//screen.width=ruudun pikselileveys, missä suurin luku on alareuna / oikea reuna
	//height-muuttuja on popupin yläreunan taso, width vasemman reunan taso
	height = screen.height/3;
	width  = screen.width/2-100;

	if (screen.height<700){
	height = 10;
	width  = 200;
	popupWindow = window.open(osoite, "SameWindow", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,fullscreen=0,top=0,left=0, height=497,width=800,top="+height+",left="+width);
	}
	else {

	if (screen.height<820){
	height = screen.height/20;
	width  = screen.width/2-100;
	popupWindow = window.open(osoite, "SameWindow", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,fullscreen=0,top=0,left=0, height=497,width=800,top="+height+",left="+width);
	
	}
	
	else {
	height = 10;
	width  = screen.width/2-100;
	popupWindow = window.open(osoite, "SameWindow", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,fullscreen=0,top=0,left=0, height=497,width=800,top="+height+",left="+width);

	}
	
	}

	if (!popupWindow.opener) popupWindow.opener = self;
	if (window.focus) popupWindow.focus();
}
}