Trying to use block of html in span to set img alt tag for multiple images on page.
<div class="shopTextWrapper">
                <div class="shop_item">
                    <a href="#dialog2" name="modal">
                    <img src="objetdart/images_sm/ethanol-i.jpg" width="75" height="75"></a>
                </div>
                <br clear="all" />
                <p class="desc_text">
                Ethanol
                </p>
            </div>

$(document).ready(function() {
    $('img').each(function(){
    var $altText = $(this).find('div p.desc_text');
    $('img').attr('alt', $altText);
    });
});

$('img').each(function(){
    var $altText = $(this).closest('div.shopTextWrapper').find(".desc_text").text();
    $(this).attr('alt', $altText);
    });

var $altText = $(this).parents('.shop_item').next($('p.desc_text')).text();