Then, why does Magento eCommerce select the “Ship to different address” option as default!? Here is a way to fix it and make Magento to select “Ship to this address” by default.

Magento FIX :

Copy app/code/core/Mage/Checkout/Block/Onepage/Billing.php to app/code/local/Mage/Checkout/Block/Onepage/Billing.php. This ensures that you do not end up messing with Magento’s core files.

Nagivate to the function

public function isUseBillingAddressForShipping()
{
if (($this->getQuote()->getIsVirtual()) || !$this->getQuote()->getShippingAddress()->getSameAsBilling())
{
return false;
}
return true;
}

Swap around the returns “false” and “true”

public function isUseBillingAddressForShipping()
{
if (($this->getQuote()->getIsVirtual()) || !$this->getQuote()->getShippingAddress()->getSameAsBilling())
{
return true;
}
return false;
}

That’s a good fix. Enjoy working with Magento eCommerce!

Solution

<input type="image" src="<?php echo $this->getSkinUrl('add-to-basket.png') ?>"

name="image-button" onclick="productAddToCartForm.submit(); return false;" />

Notice the return false; that I’ve added after the productAddToCartForm.submit().

This will fix the problem of IE submitting the add to cart button twice.

Update (Thanks Barcaro) :
File where edit is to be made…
app/design/frontend/default/default/template/catalog/product/view/addtocart.phtml
(change /default/default/ to your custom template path).