menu.js
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// JavaScript Document
function chengstate(menuid,save)
{ //切換節點的開放/關閉
menuobj = eval("item"+menuid);
obj = eval("pr"+menuid);
if(menuobj.style.display == '')
{
menuobj.style.display = 'none';
}else{
menuobj.style.display = '';
}//end if
switch (obj.className)
{
case "menu1":
obj.className = "menu2";
break;
case "menu2":
obj.className = "menu1";
break;
case "menu3":
obj.className = "menu4";
break;
case "menu4":
obj.className = "menu3";
break;
}//end switch
if(save!=false)
{
setupcookie(menuid); //保存狀態
}//end if
}//end funciton chengstaut
function setupcookie(menuid)
{ //存入cookie 保存節點狀態
var menu = new Array();
var menustr = new String();
menuOpen = false;
if(checkCookieExist("menu"))
{ //判斷是否是是否已經保存過cookie
menustr = getCookie("menu");
//alert(menustr);
if(menustr.length>0)
{ //判斷menu是否為空，，，否則分解為數組
menu = menustr.split(",");
for(i=0;i<menu.length;i++)
{
if(menu[i]==menuid)
{ //如果是打開狀態，，，刪除記錄
menu[i]='';
menuOpen = true;
}//end if
}//end for
if(menuOpen==false)menu[i] = menuid;
}else{
menu[0] = menuid;
}//end if
}else{
menu[0] = menuid;
}//end if
menustr = menu.join(",");
menustr = menustr.replace(",,",",");
if(menustr.substr(menustr.length-1,1)==',')menustr = menustr.substr(0,menustr.length-1); //去掉最後的 ","
if(menustr.substr(0,1)==',')menustr = menustr.substr(1,menustr.length-1); //去掉開始的 ","
saveCookie("menu",menustr,1000);
//alert(menustr);
//deleteCookie("menu");
}//end function setupcookie
function initialize()
{ //取得cookie 設置節點的縮放,,初始化菜單狀態
var menu = new Array();
var menustr = new String();
if(checkCookieExist("menu"))
{ //判斷是否是是否已經保存過cookie
menustr = getCookie("menu");
if(menustr.length>0)
{ //判斷長度是否合法
menu = menustr.split(",");
for(i=0;i<menu.length;i++)
{
if(objExists(menu[i]))
{ //驗證對象是否存在
chengstate(menu[i],false);
}//end if
}//end for
objExists(99);
}//end if
}//end if
}//end funciton setupstate
function objExists(objid)
{ //驗證對象是否存在
try
{
obj = eval("item"+objid);
}//end try
catch(obj)
{
return false;
}//end catch
if(typeof(obj)=="object")
{
return true;
}//end if
return false;
}//end function objExists
//--------------------------------------------------↓↓↓↓↓↓↓↓↓↓↓↓ 執行Cookie 操作
function saveCookie(name, value, expires, path, domain, secure)
{ // 保存Cookie
var strCookie = name + "=" + value;
if (expires)
{ // 計算Cookie的期限, 參數為天數
var curTime = new Date();
curTime.setTime(curTime.getTime() + expires*24*60*60*1000);
strCookie += "; expires=" + curTime.toGMTString();
}//end if
// Cookie的路徑
strCookie += (path) ? "; path=" + path : "";
// Cookie的Domain
strCookie += (domain) ? "; domain=" + domain : "";
// 是否需要保密傳送,為一個布爾值
strCookie += (secure) ? "; secure" : "";
document.cookie = strCookie;
}//end funciton saveCookie
function getCookie(name)
{ // 使用名稱參數取得Cookie值, null表示Cookie不存在
var strCookies = document.cookie;
var cookieName = name + "="; // Cookie名稱
var valueBegin, valueEnd, value;
// 尋找是否有此Cookie名稱
valueBegin = strCookies.indexOf(cookieName);
if (valueBegin == -1) return null; // 沒有此Cookie
// 取得值的結尾位置
valueEnd = strCookies.indexOf(";", valueBegin);
if (valueEnd == -1)
valueEnd = strCookies.length; // 最後一個Cookie
// 取得Cookie值
value = strCookies.substring(valueBegin+cookieName.length,valueEnd);
return value;
}//end function getCookie
function checkCookieExist(name)
{ // 檢查Cookie是否存在
if (getCookie(name))
return true;
else
return false;
}//end function checkCookieExist
function deleteCookie(name, path, domain)
{ // 刪除Cookie
var strCookie;
// 檢查Cookie是否存在
if (checkCookieExist(name))
{ // 設置Cookie的期限為己過期
strCookie = name + "=";
strCookie += (path) ? "; path=" + path : "";
strCookie += (domain) ? "; domain=" + domain : "";
strCookie += "; expires=Thu, 01-Jan-70 00:00:01 GMT";
document.cookie = strCookie;
}//end if
}//end function deleteCookie