Dynamically pass Hash value to a partial - ruby-on-rails

Question

I faced a problem to pass the hash value to partial file dynamically. I displayed the person names on my page (this is a partial). The hash value is like this:
names[1] = "James"
names[2] = "Williams"
names[3] = "Jack"
render :partial => "list", :locals => {:names => names}
I need to pass the hash value dynamically. How can I do that? In the example, the new hash is like this:
names[21] = 'Flink'
names[81] = 'Mark'
My code
class PrlcController < ApplicationController
def bar
#names = Hash.new
#names[1] = "James"
#names[2] = "Williams"
#names[3] = "Jack"
end
def foo_ajax
#names = Hash.new
#names[21] = 'Flink'
#names[81] = 'Mark'
end
end
bar.rhtml
----------
<!-- Name listing section -->
<%= render :partial => "list", :locals => "{:names => #names}" %>
<!-- AJAX calling section -->
<%= link_to_function "call testing", :onclick => "load_foo_ajax_data" %>
<!-- AJAX section -->
<div id="foo_ajax_data">
</div>
<!-- script section -->
function load_foo_ajax_data() {
new Ajax.Updater("foo_ajax_data","/Prlc/foo_ajax", {
asynchronous:true,
evalScripts:true,
onComplete:function(request){
},
onLoading:function(request){}
});
}
foo_ajax.rhtml
--------------
Some process here.
_list.rhtml
-----------
Display the names

Answer 1

Try following
class PrlcController < ApplicationController
def bar
#names = Hash.new
#names[1] = "James"
#names[2] = "Williams"
#names[3] = "Jack"
end
def foo_ajax
#names = Hash.new
#names[1] = 'Flink'
#names[2] = 'Mark'
render :update do |page|
page.replace_html 'foo_ajax_data', :partial => "list", :object => [#names]
end
end
end
bar.rhtml
<%= render :partial => "list", :locals => "{:names => #names}" %>
<!-- AJAX section -->
<div id="foo_ajax_data">
<!-- Name listing section -->
</div>
<!-- AJAX calling section -->
<%= link_to_remote "call testing", :url => { :action => "load_foo_ajax_data"} %>