?? menu.jsp
字號:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<head>
<META http-equiv=Content-Type content="text/html; charset=UTF-8">
<LINK href="images/css.css" type=text/css rel=stylesheet>
</head>
<script language="javascript">
var XMLHttpReq;
var currentSort;
//創(chuàng)建XMLHttpRequest對象
function createXMLHttpRequest() {
if(window.XMLHttpRequest) { //Mozilla 瀏覽器
XMLHttpReq = new XMLHttpRequest();
}
else if (window.ActiveXObject) { // IE瀏覽器
try {
XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
}
//發(fā)送請求函數(shù)
function sendRequest(url) {
createXMLHttpRequest();
XMLHttpReq.open("GET", url, true);
XMLHttpReq.onreadystatechange = processResponse;//指定響應函數(shù)
XMLHttpReq.send(null); // 發(fā)送請求
}
// 處理返回信息函數(shù)
function processResponse() {
if (XMLHttpReq.readyState == 4) { // 判斷對象狀態(tài)
if (XMLHttpReq.status == 200) { // 信息已經(jīng)成功返回，開始處理信息
updateMenu();
} else { //頁面不正常
alert("您所請求的頁面有異常。");
}
}
}
//更新菜單函數(shù)
function updateMenu() {
var res=XMLHttpReq.responseXML.getElementsByTagName("res")
var subMenu = "";
for(var i = 0; i < res.length; i++) {
subMenu = subMenu + " " + res[i].firstChild.data + "<br>";
}
currentSort.innerHTML = subMenu;
}
// 創(chuàng)建級聯(lián)菜單函數(shù)
function showSubMenu(obj) {
currentSort =document.getElementById(obj);
currentSort.parentNode.style.display = "";
sendRequest("menu?sort=" + obj);
}
</script>
<table style="BORDER-COLLAPSE: collapse" borderColor=#111111
cellSpacing=0 cellPadding=0 width=200 bgColor=#f5efe7 border=0>
<TR>
<TD align=middle height=4><IMG height=4
src="images/promo_list_top.gif" width="100%"
border=0>
</TD>
</TR>
<TR>
<TD align=middle bgColor=#dbc2b0
height=19><B>筆記本品牌</B>
</TD>
</TR>
<tr>
<td height="20">
<a onClick="showSubMenu('IBM')">IBM</a>
</td>
</tr>
<tr style="display:none">
<td height="20" id="IBM"> </td>
</tr>
<tr>
<td height="20">
<a onClick="showSubMenu('SONY')">SONY</a>
</td>
</tr>
<tr style="display:none ">
<td id="SONY" height="20"> </td>
</tr>
</table>
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