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JSP and call a java class

Hi,
Is it possible that in fjsp to have something like this?
When I am trying it nothing happens.
<body>
<form name="myForm" action="newjsp.jsp" method="post" >
<h1>Hello World!</h1>
<table>
<tr>
<td>
<input type="text" name="nm" >
<button type='button' onclick="<%CustomerFromDatabase tfd = new CustomerFromDatabase(request.getParameter("nm"));%>;"> submit</button>
<select >
<%
Iterator tertiIterator = tfd.getTerti().entrySet().iterator();
while(tertiIterator.hasNext()){
Map.Entry<String, String> entry = (Map.Entry) tertiIterator.next();
%><option value="<%= entry.getValue() %>"><%= entry.getValue() %></option>
<% }
%>
</select></td>
<td>b1</td>
<td>c1</td>
</tr>
</table>
</form>
</body>
If I try TertiFromDatabase tfd = new CustomerFromDatabase("test") instead of CustomerFromDatabase(request.getParameter("nm")) it will populate the html list.
Thank you