I like to solve with jQuery event to open other additional fields if listbox like company is selected. How to do it using jQuery and validation
bassistance.de/jquery-plugins/jquery-plugin-validation/
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title></title>
</head>
<body>
<table>
<tr>
<td align="left" colspan="2" class="myfield1">Type of account*<br>
<select id="" class="" onchange="checkType(this.value)" name="id_mygroups1" >
<option value="1">1. Company</option>
<option value="2">2. Person</option>
</select>
</td>
</tr>
</table>
</body>