<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
//1. 전역 객체 선언
var newWin;
```
//2.창 열기
function winOpen() {
var feature = "width=400, height=300, top=100, left=100,";
feature += "menuber=yes, location=yes , scrollbars=yes, status=yes, resizable=yes";
newWin = window.open("index.html", "" ,feature);
}
//3.창 닫기
function winClose() {
newWin.close();
}
```
</script>
</head>
<body>
<button onclick="winOpen()">창 열기</button>
<button onclick="winClose()">창 닫기</button>
</body>
</html>
