How to send some data to a function without loading a new page

[eluser]ethio[/eluser]
I'm trying to send a product id to a method without loading a new page, and since I do not have a sentence in the method to load another view I get a blank page.

This is the from inside the product view

Code:

echo form_open('shopping_basket/add_to_basket/');
echo form_hidden('pid', $id);
echo form_submit('add', 'Add to Basket');
echo form_close();

I have also tried using JavaScript which also loads a blank page

Code:

echo "<a href=''  return false;'>Add to Basket</a>";

function addBasket(id)
{
[removed].href = 'http://localhost/CI/index.php/shopping_basket/add_to_basket/' + id;
return false;
}