// JavaScript Document

	function showmain(address)
	{ 

		var req = null;
 		
		//ajax connection
		if (window.XMLHttpRequest)
		{
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			if (req.overrideMimeType) 
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				req.overrideMimeType('text/xml');
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		} 
		else if (window.ActiveXObject) 
		{
			try {
				req = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e)
			{
				try {
					req = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
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		req.onreadystatechange = function()
		{ 
			if(req.readyState == 4)
			{
				if(req.status == 200)
				{
					var mainobj = document.getElementById("main")
					if (document.getElementById||document.all)
						mainobj.innerHTML=req.responseText
					else if (document.layers){
						mainobj.document.write(req.responseText)
						mainobj.document.close()
					}
				}	
				else	
				{
					document.getElementById("main").innerHTML="Error: returned status code " + req.status + " " + req.statusText;
					
				}	
			} 
		}; 
		//document.getElementById("zone").innerHTML=subjects;
		req.open("POST", "showmain.php", true); 
		req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		req.send("address="+address);
		
	} 
	
	function showcounter()
	{ 
		var req = null;
		
		
 		
		//ajax connection
		if (window.XMLHttpRequest)
		{
 			req = new XMLHttpRequest();
			if (req.overrideMimeType) 
			{
				req.overrideMimeType('text/xml');
			}
		} 
		else if (window.ActiveXObject) 
		{
			try {
				req = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e)
			{
				try {
					req = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
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		req.onreadystatechange = function()
		{ 
			if(req.readyState == 4)
			{
				if(req.status == 200)
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					var mainobj = document.getElementById("counter")
					if (document.getElementById||document.all)
						mainobj.innerHTML=req.responseText
					else if (document.layers){
						mainobj.document.write(req.responseText)
						mainobj.document.close()
					}
				}	
				else	
				{
					document.getElementById("counter").innerHTML="Error: returned status code " + req.status + " " + req.statusText;
					
				}	
			} 
		}; 
		//document.getElementById("zone").innerHTML=subjects;
		req.open("GET", "showcounter.php", true); 
		req.send(null);
	} 

	function runBGSlideShow()
	{
		if (j>=pic_max) {j=0};
		document.getElementById('Good').style.backgroundImage = "url(background/pic" + (j+1) + ".jpg)";
		j++;
		t = setTimeout('runBGSlideShow()', speed)
	}

// initialize the setting of change banner picture
var speed = 3000
var t
var j = 0
var pic_max = 3
var preLoad = new Array()
for (i = 0; i < pic_max; i++)
 {
	preLoad[i] = new Image()
	preLoad[i].src = "background/pic" + (i+1) + ".jpg";
 }
// end 

var submenu=new Array()
submenu[1]='<ul id=menuA><div class=mainname>首頁</div><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[1][1]);><span>圖書館通告</span></a></li><li id=A02><a href="#" onclick=showmain(mainmenu[1][2]);><span>檢索DIY(LSP圖書館資源)</span></a></li><li id=A03><a href="#" onclick=showmain(mainmenu[1][3]);><span>圖書館目錄</span></a></li><li id=A04><a href="#" onclick=showmain(mainmenu[1][4]);><span>圖書館開放時間</span></a></li><li id=A05><a href="#" onclick=showmain(mainmenu[1][5]);><span>聯絡我們</span></a></li></ul>';

submenu[2]='<ul  id=menuA><div class=mainname>圖書館導覽</div><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[2][1]);><span>保良局李城璧中學圖書館館藏介紹</span></a></li></ul>'; 

submenu[3]='<ul  id=menuA><div class=mainname>閱讀活動</div><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[3][10]);><span>三十周年校慶</span></a></li><li id=A01><a href="#" onclick=showmain(mainmenu[3][9]);><span>書展</span></a></li><li id=A01><a href="#" onclick=showmain(mainmenu[3][1]);><span>閱讀分享節</span></a></li><li id=A01><a href="#" onclick=showmain(mainmenu[3][2]);><span>「圖書館檢索系統」問答遊戲花絮</span></a></li><li id=A01><a href="#" onclick=showmain(mainmenu[3][3]);><span>親親作家</span></a></li><li id=A01><a href="#" onclick=showmain(mainmenu[3][4]);><span>第二十屆「香港書展2009」</span></a></li><li id=A02><a href="#" onClick=showmain(mainmenu[3][5]);><span>體壇名將心聲迎奧運2008</span></a></li><li id=A021><a href="#" onClick=showmain(mainmenu[3][6]);><span>專題書展</span></a></li><li id=A021><a href="#" onClick=showmain(mainmenu[3][7]);><span>專題講座</span></a></li><li id=A021><a href="#" onClick=showmain(mainmenu[3][8]);><span>校外圖書活動消息</span></a></li></ul>'; 

submenu[4]='<ul  id=menuA><div class=mainname>悅讀推介</div><table height=20><tr><td></td></tr></table></li><li id=A01><a href="#" onclick=showmain(mainmenu[4][1]);><span>好書齊分享</span></a></li><li id=A02><a href="#" onclick=showmain(mainmenu[4][2]);><span>最受歡迎的書籍</span></a><li id=A01><a href="#" onclick=showmain(mainmenu[4][3]);><span>閱讀壁報板</span></a></li><li id=A04><a href="#" onclick=showmain(mainmenu[4][4]);><span>English Reading Tips</span></a></li><li id=A05><a href="#" onclick=showmain(mainmenu[4][5]);><span>中學生好書龍虎榜</span></a></li></ul>'; 

submenu[5]='<ul  id=menuA><div class=mainname>閱讀計劃</div><table height=20><tr><td></td></tr></table></li><li id=A01><a href="#" onclick=showmain(mainmenu[5][1]);><span>李城璧中學廣泛閱讀獎勵計劃</span></a></li><li id=A02><a href="#" onclick=showmain(mainmenu[5][2]);><span>香港教育城「暑期閱讀約章計劃」</span></a></li></ul>'; 


submenu[6]='<ul  id=menuA><div class=mainname>閱讀比賽</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[6][1]);><span>校外比賽</span></a></li></ul>';

submenu[7]='<ul  id=menuA><div class=mainname>Librarian天地</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[7][1]);><span>圖書館領袖生名單</span></a></li></ul>';

submenu[8]='<ul  id=menuA><div class=mainname>搜尋工具</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[8][1]);><span>搜尋引擎</span></a></li></ul>'; 

submenu[9]='<ul  id=menuA><div class=mainname>教學資源</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[7][1]);><span>教學資源</span></a></li></ul>';

submenu[10]='<ul  id=menuA><div class=mainname>校內連結</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[10][1]);><span>校內連結</span></a></li></ul>';

submenu[11]='<ul  id=menuA><div class=mainname>網站地圖</div></b></center><table height=20><tr><td></td></tr></table><li id=A01><a href="#" onclick=showmain(mainmenu[11][1]);><span>網站地圖</span></a></li></ul>';

var mainmenu = new Array()
for (var i=1;i<=11;i++){
	mainmenu[i] = new Array();
}
mainmenu[1][1] = 'main_frame/library_notice/library_notice_index.htm';
mainmenu[1][2] = 'main_frame/library_search/library_search.htm';
mainmenu[1][3] = 'main_frame/library_catalog/library_catalog.htm';
mainmenu[1][4] = 'main_frame/lib_open_time/lib_open_time.html';
mainmenu[1][5] = 'main_frame/contact_us/contact_us.html';
mainmenu[2][1] = 'main_frame/lsp_book_popularize/lsp_book_popularize.html';
mainmenu[3][1] = 'main_frame/library_reading_activities/reading_festival/index.htm';
mainmenu[3][2] = 'main_frame/library_search_system_qa_titbits/library_search_system_qa_titbits.htm';
mainmenu[3][3] = 'main_frame/author/author.htm';
mainmenu[3][4] = 'main_frame/book_exhibition/20th_book_exhibition/20th_book_exhibition_index.html';
mainmenu[3][5] = 'main_frame/sportsman_heartfelt_wishes_08/index.html';
mainmenu[3][6] = 'main_frame/special_topic_book_exhibition/special_topic_book_exhibition_index.htm';
mainmenu[3][7] = 'main_frame/special_topic_talk/special_topic_talk_index.htm';
mainmenu[3][8] = 'main_frame/library_reading_activities/library_reading_activities.htm';
mainmenu[3][9] = 'main_frame/library_reading_activities/BookShow/index.htm';
mainmenu[3][10] = 'main_frame/library_reading_activities/30anniversary/index.htm';
mainmenu[4][1] = 'main_frame/book_popularize/book_popularize_index.htm';
mainmenu[4][2] = 'main_frame/most_love_book/most_love_book_index.html';
mainmenu[4][3] = 'main_frame/reading_wall_newpapers/reading_wall_newpapers_index.html';
mainmenu[4][4] = 'main_frame/english_reading_tips/english_reading_tips.html';
mainmenu[4][5] = 'main_frame/book_popularize_list/book_popularize_list_index.htm';
mainmenu[5][1] = 'main_frame/award_list/award_list_index.htm';
mainmenu[5][2] = 'main_frame/hkeducity/hkeducity_index.htm';
mainmenu[6][1] = 'main_frame/library_competition/library_competition_index.htm';
mainmenu[7][1] = 'main_frame/library_leader_list/library_leader_list.htm';
mainmenu[8][1] = 'main_frame/search_engine/search_engine_index.htm';
mainmenu[9][1] = 'main_frame/teaching_resource/teaching_resource_index.htm';
mainmenu[10][1] = 'main_frame/school_link/school_link_index.htm';
mainmenu[11][1] = 'main_frame/school_map/school_map.html';

var menu=new Array()
menu[1]='<li id=submenutitle>asdfasdfasdf</li>'

var delay_hide=999999999
var menuobj=document.getElementById? document.getElementById("describe") : document.all? document.all.describe : document.layers? document.dep1.document.dep2 : ""

function showit(which){

clear_delayhide()
thecontent=(which==-1)? "" : submenu[which]
if (document.getElementById||document.all)
menuobj.innerHTML=thecontent
else if (document.layers){
menuobj.document.write(thecontent)
menuobj.document.close()
}
showmain(mainmenu[which][1])
}
function resetit(e){
if (document.all&&!menuobj.contains(e.toElement))
delayhide=setTimeout("showit(-1)",delay_hide)
else if (document.getElementById&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
delayhide=setTimeout("showit(-1)",delay_hide)
}
function clear_delayhide(){
if (window.delayhide)
clearTimeout(delayhide)
}
function contains_ns6(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
}

function index()
{
showit(1);
showcounter();
runBGSlideShow();
}