Help me.... Correct Router

[eluser]Steven Nguyen[/eluser]
I have URL: http://localhost:8080/CI_demo/vi/product...-Chocolate, and I want to replace with http://localhost:8080/CI_demo/vi/product...-Chocolate. I put code following into router:

Code:

$route['product/(:any)'] = "product/detail/$1";

. When I refesh with new URL like http://localhost:8080/CI_demo/vi/product...-Chocolate, so website show error "404 Page Not Found". Please help me correct router. THanks