function showImg (t) {
var x;
x=$("img",t).attr("src");
$("#img_all_m > img").css("opacity",0);
$("#img_all_m > img").attr("src",x);
$("#img_all_m > img").animate({opacity: 1}, 500 );
$("#img_all_s div").attr("id","");
$(t).attr("id","current_product_main_img");
//$("#img_all_s div").removeClass("current_product_main_img");
//$(t).addClass("current_product_main_img");
}