//Pop-it menu- By Dynamic Drive - Modified by Wbird
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use
var menuOffX=0	//菜单距连接文字最左端距离
var menuOffY=24	//菜单距连接文字顶端距离

var fo_shadows=new Array()
var linkset=new Array()

////No need to edit beyond here

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all
var ns4=document.layers

function showmenu(e,index,p,paging){
	//p为当前页数,paging为当前是不是翻页
	if (!document.all&&!document.getElementById&&!document.layers)
		return
	
	which=linkset[index]
	var pSize=10	//每页连接数
	var pNum=Math.floor((which.length-1)/pSize)+1		//页数
	
	clearhidemenu()
	ie_clearshadow()
	
	//设置菜单内容
	if (pNum==1){
		which=which.join("")
	}else{
		which=which.slice( (p-1)*pSize, p*pSize )
		which=which.join("")
		which+="<div class=\"menuitems\" >"
		if (p==1)
		{
			which+="&nbsp;&nbsp;&nbsp;&nbsp;<font face=webdings color=gray>7</font>"
		}else{
			which+="&nbsp;&nbsp;&nbsp;&nbsp;<font face=webdings style=cursor:hand onclick=showmenu(event,"+ index +","+ (p-1) +",true) >7</font>"
		}
		if (p==pNum)
		{
			which+="<font face=webdings color=gray>8</font>"
		}else{
			which+="<font face=webdings style=cursor:hand onclick=showmenu(event,"+ index +","+ (p+1) +",true) >8</font>"
		}
		which+="</div>"
	}
	
	menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : ""
	menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj
	
	if (ie4||ns6)
		menuobj.innerHTML=which
	else{
		menuobj.document.write('<layer name=gui bgColor=#E6E6E6 width=165 onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>')
		menuobj.document.close()
	}
	menuobj.contentwidth=(ie4||ns6)? menuobj.offsetWidth : menuobj.document.gui.document.width
	menuobj.contentheight=(ie4||ns6)? menuobj.offsetHeight : menuobj.document.gui.document.height
	
	eventX=ie4? event.clientX : ns6? e.clientX : e.x
	eventY=ie4? event.clientY : ns6? e.clientY : e.y
	
	var rightedge=ie4? document.body.clientWidth-eventX : window.innerWidth-eventX
	var bottomedge=ie4? document.body.clientHeight-eventY : window.innerHeight-eventY
	
	
	if (!paging)
	{	
		if (rightedge<menuobj.contentwidth)
			menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth+menuOffX : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
		else
			menuobj.thestyle.left=ie4? ie_x(event.srcElement)+menuOffX : ns6? window.pageXOffset+eventX : eventX
		
		if (bottomedge<menuobj.contentheight)
			menuobj.thestyle.top=ie4? document.body.scrollTop+eventY-menuobj.contentheight-event.offsetY+menuOffY : ns6? window.pageYOffset+eventY-menuobj.contentheight : eventY-menuobj.contentheight
		else
			menuobj.thestyle.top=ie4? ie_y(event.srcElement)+menuOffY : ns6? window.pageYOffset+eventY : eventY
	}
		
	menuobj.thestyle.visibility="visible"
	ie_dropshadow(menuobj,"#CCCCCC",3)
	return false
}
function ie_x(e){  
	var l=e.offsetLeft;  
	while(e=e.offsetParent){  
		l+=e.offsetLeft;  
	}  
	return l;  
}  


function ie_y(e){  
	var t=e.offsetTop;  
	while(e=e.offsetParent){  
		t+=e.offsetTop;  
	}  
	return t;  
}  

function ie_dropshadow(el, color, size)
{
	var i;
	for (i=size; i>0; i--)
	{
		var rect = document.createElement('div');
		var rs = rect.style
		rs.position = 'absolute';
		rs.left = (el.style.posLeft + i) + 'px';
		rs.top = (el.style.posTop + i) + 'px';
		rs.width = el.offsetWidth + 'px';
		rs.height = el.offsetHeight + 'px';
		rs.zIndex = el.style.zIndex - i;
		rs.backgroundColor = color;
		var opacity = 1 - i / (i + 1);
		rs.filter = 'alpha(opacity=' + (100 * opacity) + ')';
		el.insertAdjacentElement('afterEnd', rect);		// 输出阴影，若不想要投影，可以注释此句
		fo_shadows[fo_shadows.length] = rect;
	}
}
function ie_clearshadow()
{
	for(var i=0;i<fo_shadows.length;i++)
	{
		if (fo_shadows[i])
			fo_shadows[i].style.display="none"
	}
	fo_shadows=new Array();
}


function contains_ns6(a, b) {
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	return false;
}

function hidemenu(){
	if (window.menuobj)
		menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide"
	ie_clearshadow()
}

function dynamichide(e){
	if (ie4&&!menuobj.contains(e.toElement))
		hidemenu()
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
		hidemenu()
}

function delayhidemenu(){
	if (ie4||ns6||ns4)
		delayhide=setTimeout("hidemenu()",500)
}

function clearhidemenu(){
	if (window.delayhide)
		clearTimeout(delayhide)
}

function highlightmenu(e,state){
	if (document.all)
		source_el=event.srcElement
	else if (document.getElementById)
		source_el=e.target
	if (source_el.className=="menuitems"){
		source_el.id=(state=="on")? "mouseoverstyle" : ""
	}
	else{
		while(source_el.id!="popmenu"){
			source_el=document.getElementById? source_el.parentNode : source_el.parentElement
			if (source_el.className=="menuitems"){
				source_el.id=(state=="on")? "mouseoverstyle" : ""
			}
		}
	}
}

if (ie4||ns6)
document.onclick=hidemenu

function bbimg(o){
	var zoom=parseInt(o.style.zoom, 10)||100;zoom+=event.wheelDelta/12;if (zoom>0) o.style.zoom=zoom+'%';
	return false;
}
// JavaScript Document
function chengstate(menuid,save)
{											//切换节点的开放/关闭
	menuobjtree	= eval("item"+menuid);
	obj		= eval("pr"+menuid);
	
	if(menuobjtree.style.display == '')
	{
		menuobjtree.style.display	= 'none';
	}else{
		menuobjtree.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);			//保存状态
	}//end if
}//end funciton chengstaut

function setupcookie(menuid)
{										//存入cookie  保存节点状态
	var menu	= new Array();
	var menustr	= new String();
	menuOpen	= false;
	if(checkCookieExist("menu"))
	{									//判断是否是是否已经保存过cookie
		menustr		= getCookie("menu");
		//alert(menustr);
		if(menustr.length>0)
		{								//判断menu是否为空，，，否则分解为数组
			menu	= menustr.split(",");
			for(i=0;i<menu.length;i++)
			{
				if(menu[i]==menuid)
				{						//如果是打开状态，，，删除记录
					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);		//去掉最后的 ","
	if(menustr.substr(0,1)==',')menustr = menustr.substr(1,menustr.length-1);		//去掉开始的 ","
	saveCookie("menu",menustr,1000);
	//alert(menustr);
	//deleteCookie("menu");
}//end function setupcookie

function initialize()
{											//取得cookie  设置节点的缩放,,初始化菜单状态
	var menu	= new Array();
	var menustr	= new String();
	
	if(checkCookieExist("menu"))
	{									//判断是否是是否已经保存过cookie
		menustr		= getCookie("menu");
		if(menustr.length>0)
		{								//判断长度是否合法
			menu	= menustr.split(",");
			for(i=0;i<menu.length;i++)
			{
				if(objExists(menu[i]))			
				{						//验证对象是否存在
					chengstate(menu[i],false);
				}//end if
			}//end for
			objExists(99);
		}//end if
	}//end if
}//end funciton setupstate

function objExists(objid)
{											//验证对象是否存在
	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
//--------------------------------------------------↓↓↓↓↓↓↓↓↓↓↓↓  执行Cookie 操作
function saveCookie(name, value, expires, path, domain, secure)
{											// 保存Cookie
  var strCookie = name + "=" + value;
  if (expires)
  {											// 计算Cookie的期限, 参数为天数
     var curTime = new Date();
     curTime.setTime(curTime.getTime() + expires*24*60*60*1000);
     strCookie += "; expires=" + curTime.toGMTString();
  }//end if
  // Cookie的路径
  strCookie +=  (path) ? "; path=" + path : ""; 
  // Cookie的Domain
  strCookie +=  (domain) ? "; domain=" + domain : "";
  // 是否需要保密传送,为一个布尔值
  strCookie +=  (secure) ? "; secure" : "";
  document.cookie = strCookie;
}//end funciton saveCookie

function getCookie(name)
{											// 使用名称参数取得Cookie值, null表示Cookie不存在
  var strCookies = document.cookie;
  var cookieName = name + "=";  // Cookie名称
  var valueBegin, valueEnd, value;
  // 寻找是否有此Cookie名称
  valueBegin = strCookies.indexOf(cookieName);
  if (valueBegin == -1) return null;  // 没有此Cookie
  // 取得值的结尾位置
  valueEnd = strCookies.indexOf(";", valueBegin);
  if (valueEnd == -1)
      valueEnd = strCookies.length;  // 最後一个Cookie
  // 取得Cookie值
  value = strCookies.substring(valueBegin+cookieName.length,valueEnd);
  return value;
}//end function getCookie

function checkCookieExist(name)
{											// 检查Cookie是否存在
  if (getCookie(name))
      return true;
  else
      return false;
}//end function checkCookieExist

function deleteCookie(name, path, domain)
{											// 删除Cookie
  var strCookie;
  // 检查Cookie是否存在
  if (checkCookieExist(name))
  {										    // 设置Cookie的期限为己过期
    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