Write a JavaScript program to create vertical frames.
<html>
<head>
<title>Create Vertical Frames</title>
</head>
<frameset cols="40%, 20%, 20%, 20%">
<frame src="frame1.html"/>
<frame src="frame2.html"/>
<frame src="frame3.html"/>
<frame src="frame4.html"/>
</frameset>
</html>
<html>
<head>
<title>Frame 1</title>
</head>
<body>
<h1>Webpage 1</h1>
</body>
</html>
<html>
<head>
<title>Frame 2</title>
</head>
<body>
<h1>Webpage 2</h1>
</body>
</html>
<html>
<head>
<title>Frame 3</title>
</head>
<body>
<h1>Webpage 3</h1>
</body>
</html>
<html>
<head>
<title>Frame 4</title>
</head>
<body>
<h1>Webpage 4</h1>
</body>
</html>
