simple form problem

I think this was working at one point but now i dont know if i ever
tested it. The problem is that it is not sending the value in the text
field as a parameter when submit is pressed. so in the submitBid method
in the controller params[:bidAmount] = nil no matter what is typed in
the field.

<% form_remote_tag(:url => {:action => 'submitBid'}, :condition =>
"bidCheck()") do%>

<td><%= text_field_tag :bidAmount , "", { :id => 'bidAmount', :size =>
4, :onKeyPress => "return numbersonly(this,event)" } %></td>

<td id="btnSubmit"> <%= submit_tag 'Bid' %></td>

<% end %>

can you put the output of the server for the submit action?