高亮效果

JS

    window.onload = function(){
        var trE = document.getElementById("lightBar").rows,
                trLen = trE.length,//获取被遍历的节点长度
                i = 0;

        for(; i < trLen ; i++){//遍历被提示的对象
            var trEi = trE[i];

            trEi.onmousemove = function(event){//设置高亮效果的样式
                this.style.backgroundColor = "#a5e5aa";//高亮样式 background-color:#a5e5aa;
            }

            trEi.onmouseout = function(){//还原初始的样式
                this.style.backgroundColor = "#fff";
            }

        }
    };