<form>
<?php $_product = $this->getProduct(); ?>
<?php $buttonTitle = $this->__('Add to Cart'); ?>
<?php if($_product->isSaleable()): ?>
    <div class="add-to-cart">
        <?php if(!$_product->isGrouped()): ?>
        <label class="qty_label" for="qty"><?php echo $this->__('Quantity') ?>:</label>
<div class="qty_pan">
        <input type="text" name="qty" id="qty" maxlength="12" value="<?php echo $this->getProductDefaultQty() * 1 ?>" title="<?php echo $this->__('Qty') ?>" class="input-text qty" />
</div>
        <?php endif; ?>
        <button type="button" title="<?php echo $buttonTitle ?>" class="button btn-cart" onclick="productAddToCartForm.submit(this)"><span><span><?php echo $buttonTitle ?></span></span></button>
        <?php echo $this->getChildHtml('', true, true) ?>
    </div>
<?php endif; ?>
</form>

<?php echo $this->getBlockHtml('formkey'); ?>

<input type="hidden" name="form_key" value="<?php echo Mage::getSingleton('core/session')->getFormKey(); ?>" />

<form action="<?php echo $this->getAddToCartUrl($_product) ?>" method="post" id="product_addtocart_form">
    <?php echo $this->getBlockHtml('formkey'); ?>

<form action="<?php echo $this->getUrl('checkout/cart/updatePost') ?>" method="post">
    <?php echo $this->getBlockHtml('formkey'); ?>