For this dropdownlist in HTML:
<select id="countries">
<option value="1">Country</option>
</select>
I would like to open the list (the same as left-clicking on it). Is this possible using JavaScript (or more specifically jQuery)?
You can easily simulate a click on an element, but a click on a <select> won’t open up the dropdown.
Using multiple selects can be problematic. Perhaps you should consider radio buttons inside a container element which you can expand and contract as needed.