<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<c:set var="cp" value="${pageContext.request.contextPath}" ></c:set>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <style>
            table{border:0;margin:0;border-collapse:collapse;border-spacing:0;}
            td
            {
                border:1px solid green;
            }
            .red{background-color: red;}
            .gray{background-color: gray;}            
        </style>
    
        <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
        <title>Insert title here</title>
        <script type="text/javascript" src="${cp}/js/jquery-1.7.2.js"></script>
        <script type="text/javascript" src="${cp}/js/table.js"></script>
    </head>
<body>
    <table>    
        <tbody>
            <tr>
                <td>单行1</td>
                <td>单行2</td>
                <td>单行3</td>
            </tr>
            <tr>
                <td>双行1</td>
                <td>双行2</td>
                <td>双行3</td>
            </tr>
            <tr>
                <td>单行1</td>
                <td>单行2</td>
                <td>单行3</td>
            </tr>
            <tr>
                <td>双行1</td>
                <td>双行2</td>
                <td>双行3</td>
            </tr>
            <tr>
                <td>单行1</td>
                <td>单行2</td>
                <td>单行3</td>
            </tr>
            <tr>
                <td>双行1</td>
                <td>双行2</td>
                <td>双行3</td>
            </tr>                        
        </tbody>
    </table>
</body>
</html>
$(document).ready(function(){
    $("tr:even").addClass("gray");
});