how to redraw google map with jQuery (Ruby on Rails 3)

i have fields:

 <%= f.label :address %>
 <%= f.text_field :address %>
 <%= f.label :city %>
 <%= f.text_field :city %>
 <%= f.label :state %>
 <%= f.text_field :state %>
 <%= f.label :country %>
 <%= f.text_field :country %>

and script:

 $("#addr").focusout(function() { 
var param = $("#user_address").val(开发者_高级运维);
 // code
 });

what code must be in function to redraw map with new address?

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you should check geocoder or here