function openWindow(url, width, height, resizable, scrollable) {
	var x = (screen.availWidth - width)/2;
	var y = (screen.availHeight - height)/2;
	var r = resizable ? "yes" : "no";
	var s = scrollable ? "yes" : "no";
	var features = "toolbar=no,location=no,status=yes,menubar=no,scrollbars="+s+",resizable="+r+",width="+width+",height="+height+",screenX="+x+",screenY="+y+",top="+y+",left="+x;
	window.open(url, "winBKW", features);
}

function openPrivacy() {
	var u = "privacy.html";
	openWindow(u, 470, 500, false, true);
}

function openLegal() {
	var u = "legal.html";
	openWindow(u, 470, 500, false, true);
}