function load_prod_pics(prod_id){
            var url = "pages/hu/_ajax.php?a=prod_pics";
            new Ajax(url, {
                method: 'post',
                data: 'a=prod_pics&prod_id='+prod_id,
                update: $('prod_pics')
            }).request();
}
function changeBigPic(id){
	$('bigPic').innerHTML = "<img width='340' height='340' alt='nagykep' src='<?=_WEB_ROOT?>/pics/"+id+".jpg' />";
}