$(document).ready(function() {

 $('<img src="/images/magnify.gif" width="15px" height="15px" style="bottom: 0; left: 90%; position: relative; display: block;"/>').insertAfter('.product_details').end().add('img.product_details').mouseover(function() {
     $('.product_image_zoom').css('display', 'block');
   }).mouseout(function() {
     $('.product_image_zoom').css('display', 'none');
   });
});