function GoodsAddCart(m){
    jQuery.ajax({
    url: "/ajax/AjaxAction.ashx",
            data: "random="+Math.random()+"&act=AddCart&num="+m+"",
            cache:false,
            error:function(e){
            alert('error');
        },
        success: function(msg){
            if(msg=='err'){
                alert('操作失败，请重新尝试');                
            }else if(msg=='noLogin'){
                if(confirm('你还没有登录，请先登录！'))
                    location.href="http://member.xiuma.com/login.aspx?ReturnUrl="+location.href;
                else
                    return;
            }else if(msg=='UserSelf'){
                alert('自己不能购买自己产品')
            }else if(msg=='isExist'){
                alert('该产品已经存在')
            }else if(msg=='ok'){
                Showmark(200,50,'popbox');
            }
            else{
                alert(msg);
            }
        }
    })    
}