Rails help with select and render partial - ruby-on-rails

Question

Want to create a select that tells what info to pass to the partial in a Rails 3 App.
Currently.
Lets say default is
<% orders_date_range = #orders.closed_today %>
Then
<div id="reports">
<%= render :partial => "report_details", :locals => { :orders => orders_date_range } %>
</div>
Can I create a select tag to pass in the orders_date_range? Or is there a better way of doing this?
UPDATE
<% orders = #orders.closed_today %>
<% #options = [["this week", #orders.closed_this_week],["this year", #orders.closed_this_year]]%>
<%= select 'orders', 'order', #options.collect {|f| [f[0], f[1]]}, :remote => true %>
<div id="reports">
<%= render :partial => "report_details", :locals => { :orders => orders } %>
</div>
Don't know why, but would only work with 'orders', 'order' for select.
applicaton.js
$("#orders_order").change(function(){
$.getScript("reports");
});
reports.js.erb
$("#reports").html("<%= escape_javascript(render :partial => 'report_details', :locals => { :orders => params[:selected] } ) %>");

Answer 1

Probably would be cool to do this as an AJAX thing....
Form.erb:
#call this at the top of your view
<%= javascript_include_tag :defaults %>
<%= select 'orders', 'option', #options.collect {|f| [f[0], f[1]]}, :onchange => remote_function(:url => {:action => :render_my_partial}, :with => 'Form.Element.Serialize(this)' %>
Controller:
def form
#options = [["option1", option1],["option2", option2]...]
end
def render_my_partial
render update do |page|
page.replace_html 'reports', :partial => 'report_details', :orders => params[:orders][:option]
end
end