Magento 1.9 multiple add to cart button

Question

I want to show two Add To Cart button in view.phtml page. those buttons are following,

1. Add To Cart
2. Insta Buy

Add To Cart button working with normal functionality, It works fine.

But When user click Insta Buy directly redirect to checkout/onepage. I tried some code but it goes to checkout/cart page. That code is following

<button type="button" title="<?php echo $this->__('Insta Buy') ?>" class="button btn-cart" onclick="setLocation('<?php echo $this->getAddToCartUrl($_product) ?>')"><span><span><?php echo $this->__('Insta Buy') ?></span></span></button>

I want to redirect to checkout/onepage page. How can i do this.

Answer 1

Add the code bellow in: app/design/frontend/{yourpackage}/{yourtheme}/template/catalog/product/view/addtocart.phtml

<button type="button" title="<?php echo $this->__('Insta Buy') ?>" class="button btn-cart" onclick="setcheckoutLocation('<?php echo $this->getAddToCartUrl($_product) ?>','<?php echo Mage::getUrl('checkout/onepage') ?>')"><span><span><?php echo $this->__('Insta Buy') ?></span></span></button>
 <script type="text/javascript">
     function setcheckoutLocation(location,checkout)
     {
         jQuery.ajax({
                type:"GET",
                url:location,
                success:function(data){
                     window.location.href = checkout;
                }
          });
     }
 </script>

Answer 2

This code for pass product data with quantity

app/design/frontend/{yourpackage}/{yourtheme}/template/catalog/product/view.phtml

Form values pass here

<form action="<?php echo $this->getSubmitUrl($_product) ?>" method="post"  id="product_addtocart_form"<?php if ($_product->getOptions()): ?> enctype="multipart/form-data"<?php endif; ?>>

. app/design/frontend/{yourpackage}/{yourtheme}/template/catalog/product/view/addtocart.phtm

Code

<button type="button" title="<?php echo $this->__('Insta Buy') ?>" class="button btn-cart" onclick="setcheckoutLocation('<?php echo $this->getAddToCartUrl($_product) ?>','<?php echo Mage::getUrl('checkout/onepage') ?>')"><span><span><?php echo $this->__('Insta Buy') ?></span></span></button>

script

<script type="text/javascript">
                 function setcheckoutLocation(location,checkout)
                 {
                    var data = jQuery('#product_addtocart_form').serialize();
                    jQuery('#preloader .loader').fadeIn(300);
                     jQuery.ajax({
                            type:"post",
                            url:location,
                            data: data,
                            success:function(data){
                                 window.location.href = checkout;
                            }
                      });
                 }
             </script>

Here store all the data in var data = jQuery('#product_addtocart_form').serialize();