I have a form where my user registers for my site. There are a number of fields on the page such as name, address, city, etc.

It is in choosing a state/province or other that I need help with.

What I want is, on the same page, is this: the user chooses a country from a select list. If the user chooses "USA" I want the another select list to display the states for the user choose from. If the user chooses CAN (Canada) I want a different select to come up with the Canadian provinces. But if the user chooses any other country, I want a text box to come up where the user would type in the area.

Like this:


<option value="USA">United States
<option value="CAN">Canada
<option value="BRA">Brazil
<option value="COM">Columbia
<option value="CRI">Costa Rica


If the user chooses USA the then see this:

<option value="AZ">Arizona
<option value="AK">Alaska
<option value="AL">Alabama
<option value="CA">California/option>
<option value="CT">Connecticut


BUT if the user chooses CAN they get this:


<option…