I found this code for my project. I want to change this to open website with click on submit button
<html>
<body>
<form action="/action_page.php" method="get">
<label for="cars">Choose a Site:</label>
<select id="site" name="site">
<option value="Google">Google</option>
<option value="Yahoo">Yahoo</option>
<option value="MSN">MSN</option>
</select>
<input type="submit">
</form>
</body>
</html>
for example: when select "Google" from list, with click on "submit" button open "www.google.com" that exist on "action_page.php"
I dont have "action_page.php" code