estimate shipping

Hi! I want that my estimate shipping module (on cart page) stay fixed when i add a shipping method to the cart. Now, when i selected and makes a reload of the page and the shipping method desapear and i dont want that. Can you help me?

Sorry my english.

It has to be reloaded because at checkout the user may enter a different shipping address.

You can use Automatic Shipping to have it automatically applied to the cart, but it will still need to be selected at checkout if you want separate shipping and billings addresses. Otherwise, you can just set "Requires Shipping" to "No" for all products, and then only have the shipping automatically applied.