window.onload = function(){      var star = document.getElementById('star');      var ul = star.getElementsByTagName('ul')[0];      var li = star.getElementsByTagName('li');      var span = star.getElementsByTagName('span')[1];      var p = star.getElementsByTagName('p')[0];      var evl = ["很不满意|差得太离谱，与卖家描述的严重不符，非常不满",                  "不满意|部分有破损，与卖家描述的不符，不满意",                  "一般|质量一般，没有卖家描述的那么好",                  "满意|质量不错，与卖家描述的基本一致，还是挺满意的",                  "非常满意|质量非常好，与卖家描述的完全一致，非常满意"];      var iStar = iArg = 0;      for(i = 1;i <= li.length;i++){          li[i-1].point = i;          li[i-1].onmouseover = function(){              fnPoint(this.point);              p.style.left = ul.offsetLeft + this.point * this.offsetWidth - 104 + 'px';              p.innerHTML = '<em><b>'+this.point+'分</b>'+ evl[this.point-1].match(/(.+)\|/)[1] + '</em>' + evl[this.point-1].match(/\|(.+)/)[1];              p.style.display = 'block';          }                     li[i-1].onclick = function(){              iStar = this.point;              p.style.display = 'none';              span.innerHTML = '<strong>'+this.point+'分'+'</strong>'+'('+evl[this.point-1].match(/\|(.+)/)[1]+')';                         }                     li[i-1].onmouseout = function(){              fnPoint();             //可以传参数              p.style.display = 'none';          }      }             function fnPoint(iArg){          var score = iArg || iStar;          for(i =1;i <=li.length;i++){              li[i-1].className = score < i?'':'on';          }      }  }