隔行换色+选中高亮 的高性能解决方案 求助

Question

<style>
table tr
{
  background-color:expression(this.rowIndex%2==0 ? "#ffffff" : "#c0c0c0");
}
</style>
<script>
var oldTd,oldTdText;
window.onload=function(){
  var table1 = document.getElementById("table1");
  var rows = table1.rows;
  for(i=0; i<rows.length; i++)
    {
      rows[i].cells[0].onmouseover=function(){
        if(oldTd)
        {
          oldTd.innerHTML=oldTdText;
        }
        oldTd=this;
        oldTdText=this.innerHTML;
        this.innerHTML="<font style='background-color:red'>"+this.innerHTML+"</font>";
      };
    }
}
</script>
</head>
<table id="table1" width="300" border="1" cellpadding="0" cellspacing="0" align="center" >
  <tr>
    <td>Line1Line1Line1Line1</td>
  </tr>
  <tr>
    <td>Line2Line2Line2Line2</td>
  </tr>
  <tr>
    <td>Line3Line3Line3Line3</td>
  </tr>
  <tr>
    <td>Line4Line4Line4Line4</td>
  </tr>
  <tr>
    <td>Line5Line5Line5Line5</td>
  </tr>
</table>

Answer 1

不是说
expression的性能比较差的吗！看来传说的也不对啊！测了下感觉比JS好点！汗一个

Answer 2

<script type="text/javascript">
$(document).ready(function(){ 
        $(".stripe tr").mouseover(function(){ 
                $(this).addClass("样式表名");}).mouseout(function(){ 
                $(this).removeClass("样式表名");})
        $(".table class tr:even").addClass("偶数行样式表名");
});
</script>

Answer 3

<title>隔行换色_选中高亮</title>
<style>
td{width:200px;padding-left:20px;}
a{color:#00f}
.tdover{background:#ff0}
.tdover a{color:#fff;background:#f00}
</style>
<script>
window.onload=function(){
  var table1 = document.getElementById("table1");
  var rows = table1.rows;
  for(i=0; i<rows.length; i++){
      rows[i].style.backgroundColor=(i%2==0)?"#fff" : "#eee"
      rows[i].cells[0].onmouseover=function(){
         this.name=this.style.backgroundColor;
         this.className="tdover";
      }
      rows[i].cells[0].onmouseout=function(){
         this.style.backgroundColor=this.name;
         this.name="";
         this.className="";
      }
}}
</script>
</head>
<table id="table1" width="300" border="1" cellpadding="0" cellspacing="0">
  <tr>
    <td><a href="###">选中高亮</a></td><td>隔行换色</td></tr>
  <tr>
    <td><a href="###">选中高亮</a></td><td>隔行换色</td></tr>
  <tr>
    <td><a href="###">选中高亮</a></td><td>隔行换色</td></tr>
  <tr>
    <td><a href="###">选中高亮</a></td><td>隔行换色</td></tr>
</table>