若img标签图片加载失败,显示某固定图片

<script type="text/javascript">
    $(function(){
        $("img").attr("onerror","slnotimg();");
        $("img").each(function(){
            this.src = this.src;
        });
    });
    function slnotimg() {
        var img = event.srcElement;
        img.src = "./img/load.svg";//若加载失败显示的图片
        img.onerror = null;
    }
</script>