<div class="starts">  <ul id="pingStar">    <li rel="1" title="特別差，給1分"></li>    <li rel="2" title="很差，給2分"></li>    <li rel="3" title="一般般，給3分"></li>    <li rel="4" title="很好，給4分"></li>    <li rel="5" title="非常好，給5分"></li>    <span id="dir"></span>  </ul>  <input type="hidden" value="" id="startP"></div>

.starts,.starts ul{float:left;}.starts{padding-left:16px;padding-top:7px;}.starts ul li{width:32px;height:31px;float:left;background:#ddd;padding-right:3px;}.starts ul li.on{background:red;}.starts ul span{display:inline;float:left;padding-left:10px;height:31px;line-height:31px;}

window.onload = function () {  var s = document.getElementById("pingStar"),    m = document.getElementById('dir'),    n = s.getElementsByTagName("li"),    input = document.getElementById('startP'); //保存所選值  clearAll = function () {    for (var i = 0; i < n.length; i++) {      n[i].className = '';    }  }  for (var i = 0; i < n.length; i++) {    n[i].onclick = function () {      var q = this.getAttribute("rel");      clearAll();      input.value = q;      for (var i = 0; i < q; i++) {        n[i].className = 'on';      }      m.innerHTML = this.getAttribute("title");    }    n[i].onmouseover = function () {      var q = this.getAttribute("rel");      clearAll();      for (var i = 0; i < q; i++) {        n[i].className = 'on';      }    }    n[i].onmouseout = function () {      clearAll();      for (var i = 0; i < input.value; i++) {        n[i].className = 'on';      }    }  }}