// JavaScript Document

function chengstate(menuid,save)

{											//???????/??

	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);			//????

	}//end if

}//end funciton chengstaut



function setupcookie(menuid)

{										//??cookie  ??????

	var menu	= new Array();

	var menustr	= new String();

	menuOpen	= false;

	if(checkCookieExist("menu"))

	{									//????????????cookie

		menustr		= getCookie("menu");

		//alert(menustr);

		if(menustr.length>0)

		{								//??menu??????????????

			menu	= menustr.split(",");

			for(i=0;i<menu.length;i++)

			{

				if(menu[i]==menuid)

				{						//??????????????

					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);		//????? ","

	if(menustr.substr(0,1)==',')menustr = menustr.substr(1,menustr.length-1);		//????? ","

	saveCookie("menu",menustr,1000);

	//alert(menustr);

	//deleteCookie("menu");

}//end function setupcookie



function initialize()

{											//??cookie  ???????,,???????

	var menu	= new Array();

	var menustr	= new String();

	

	if(checkCookieExist("menu"))

	{									//????????????cookie

		menustr		= getCookie("menu");

		if(menustr.length>0)

		{								//????????

			menu	= menustr.split(",");

			for(i=0;i<menu.length;i++)

			{

				if(objExists(menu[i]))			

				{						//????????

					chengstate(menu[i],false);

				}//end if

			}//end for

			objExists(99);

		}//end if

	}//end if

}//end funciton setupstate



function objExists(objid)

{											//????????

	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

//--------------------------------------------------????????????  ??Cookie ??

function saveCookie(name, value, expires, path, domain, secure)

{											// ??Cookie

  var strCookie = name + "=" + value;

  if (expires)

  {											// ??Cookie???, ?????

     var curTime = new Date();

     curTime.setTime(curTime.getTime() + expires*24*60*60*1000);

     strCookie += "; expires=" + curTime.toGMTString();

  }//end if

  // Cookie???

  strCookie +=  (path) ? "; path=" + path : ""; 

  // Cookie?Domain

  strCookie +=  (domain) ? "; domain=" + domain : "";

  // ????????,??????

  strCookie +=  (secure) ? "; secure" : "";

  document.cookie = strCookie;

}//end funciton saveCookie



function getCookie(name)

{											// ????????Cookie?, null??Cookie???

  var strCookies = document.cookie;

  var cookieName = name + "=";  // Cookie??

  var valueBegin, valueEnd, value;

  // ??????Cookie??

  valueBegin = strCookies.indexOf(cookieName);

  if (valueBegin == -1) return null;  // ???Cookie

  // ????????

  valueEnd = strCookies.indexOf(";", valueBegin);

  if (valueEnd == -1)

      valueEnd = strCookies.length;  // ????Cookie

  // ??Cookie?

  value = strCookies.substring(valueBegin+cookieName.length,valueEnd);

  return value;

}//end function getCookie



function checkCookieExist(name)

{											// ??Cookie????

  if (getCookie(name))

      return true;

  else

      return false;

}//end function checkCookieExist



function deleteCookie(name, path, domain)

{											// ??Cookie

  var strCookie;

  // ??Cookie????

  if (checkCookieExist(name))

  {										    // ??Cookie???????

    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