function renderImage(item_id, image_id) {

  var url = '?action=render_image';
  var pars = 'item_id='+item_id+'&image_id='+image_id;


  var myAjax = new Ajax.Request(
    url,
    {
      method: 'post',
      postBody: pars,
			  encoding: 'ISO-8859-1',
      onComplete: renderImageResponse
    });
}

function renderImageResponse(resp) {
	$('right').innerHTML = resp.responseText;
}