方法一：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>
.EvenOrOddRow{
background-color: expression((this.sectionRowIndex%2)?'white':'#E0E0E0');
}
</style>
<script>
var currentActiveRow;
function changeActiveRow(obj)
{
if(currentActiveRow) currentActiveRow.style.backgroundColor="";
currentActiveRow=obj;
currentActiveRow.style.backgroundColor="Red";
}
</script>
</head>
<body>
<table width=100%>
<tr bgcolor=aaaaaa >
<td>Code</td><td>Name</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
</body>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>
.EvenOrOddRow{
background-color: expression((this.sectionRowIndex%2)?'white':'#E0E0E0');
}
</style>
<script>
var currentActiveRow;
function changeActiveRow(obj)
{
if(currentActiveRow) currentActiveRow.style.backgroundColor="";
currentActiveRow=obj;
currentActiveRow.style.backgroundColor="Red";
}
</script>
</head>
<body>
<table width=100%>
<tr bgcolor=aaaaaa >
<td>Code</td><td>Name</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
<tr class="EvenOrOddRow" onclick="changeActiveRow(this);">
<td>001</td><td>zhangsan</td>
</tr>
</body>
方法二：
var curRow; //全局行号
var curRowId; //选中行的记录信息的ID
var curColor;
function selectRow(tr1){
if(curRow)
{
curRow.bgColor=curColor;
curColor=tr1.bgColor;
tr1.bgColor="#FFE9B3";
}else{
curColor=tr1.bgColor;
tr1.bgColor="#FFE9B3";
}
curRow=tr1;
curRowId=tr1.id;
}
调用方法：<tr onclick="selectRow(this)">...