display list of images for the same product in home page

i am working on magento 1.9.2.4 this the code that exist in my grid.phtml

 <div class="box-images">
                <a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" class="product-image">
                    <img <?php if(isset($layzyload)): ?>class="owl-lazy"<?php endif; ?> <?php if(isset($layzyload)): ?>data-src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize($widthImage, $heightImage); ?>"<?php else: ?>src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize($widthImage, $heightImage); ?>"<?php endif; ?> alt="<?php echo $this->stripTags($this->getImageLabel($_product, 'small_image'), null, true) ?>" />
                </a>
                    <?php if($_product->isSaleable()): ?>
                        <div class="quickview"><a class="view-detail" <?php if(Mage::getStoreConfig('quickview/general/enabled')):?> id='fancybox<?php echo $_product->getId()?>'  href="<?php echo $this->getUrl('quickview/index/ajax',array('product_id'=>$_product->getId())); ?>"<?php else: ?> href="<?php echo $_product->getProductUrl() ?>" href="<?php echo $_product->getProductUrl() ?>" <?php endif ?> title="<?php echo $this->__('Quick View') ?>"><i class="fa fa-search"></i></a></div> 

how do i change it to display all the image exists in this product