Question

I want to have a element that displays in the multiple selection display style (it –the box instead of the drop down), but only allows you to select on thing at a time. Is that possible?

Answer 1

This will display a listbox-style select element that allows only one selected item at a time:

<select size="3">
    <option>1</option>
    <option>2</option>
    <option>3</option>
</select>

The size atttribute will control how many rows that are visible in the control. If you want to allow multiple items to be selected, add the multiple attribute to the select element:

<select size="3" multiple="multiple">