<button type="button"title="<?phpecho$this->__('Add to Cart')?>"class="button btn-cart"onclick="setLocation('<?phpecho$this->getAddToCartUrl($_product)?>')"><span><span><?phpecho$this->__('Add to Cart')?></span></span></button>
<button type="button"title="<?phpecho$this->__('Add to Cart')?>"class="button btn-cart"><span><span>ShopNow</span></span></button>
</a>
<?phpelse:?>
<button type="button"title="<?phpecho$this->__('Add to Cart')?>"class="button btn-cart"onclick="setLocation('<?phpecho$this->getAddToCartUrl($_product)?>')"><span><span><?phpecho$this->__('Add to Cart')?></span></span></button>