document.write
alert
confirm
prompt(str1,str2)
window.open()
window.close()//var page1.close();
practise:
<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk"/>
<script type="text/javascript">
function openWindow(){
var conf=confirm('new window?');// 新窗口打開時彈出確認框，是否打開
if (conf){
var addr= prompt('addr ?','http：//www.imooc.com/');// 通過輸入對話框，確定打開的網址，默認爲 http：//www.imooc.com/
//打開的窗口要求，寬400像素，高500像素，無菜單欄、無工具欄。
window.open(addr,'haha','width=400,height=500,menubar=no,toolbar=no');}
}
</script>
</head>
<body>
<input type="button" value="新窗口打開網站" οnclick="openWindow()" />
</body>
</html>