I need to create a drop down menu in HTML. The idea is that when I click on the option, let's say a city, below the menu automatically should appear detailed contact information.
So for example. If I choose London, automatically should appear street address, phone, etc. Could be with submit button like below, but better without.
<form action="process.php" method='post'>
<select name="cities">
<option value="London">London</option>
<option value="NY">NY</option>
<option value="Rome">Rome</option>
<option value="Paris">Paris</option>
</select>
<input type="submit" />
</form>
I'm not so good in HTML, will really appreciate some help