var nSpaceDate = 15;
var nPopMaxTimes = 1;

var naWeekTimes = 0;
var nCountWeek = 0;

var bExist = 0;
var strDomainPath =  ";path=/;domain=sina.com.cn;";

var ietcookie = "ietong_cookie";
var ddtcookie = "ddtong_cookie";
var cookieenable = "sina_cookie_enable";

function getCookieData(label)
{
	var labelLen = label.length;
	var cLen = document.cookie.length;
	var i = 0;
	var cEnd;
	while(i < cLen)
	{
		var j = i + labelLen;
		if (document.cookie.substring(i, j) == label)
		{
			cEnd = document.cookie.indexOf(";", j);
			if (cEnd == -1)
			{
				cEnd = document.cookie.length;
			}
			return unescape(document.cookie.substring(j, cEnd));
		}
		i++;
	}
	return "";
}

function IsCookieEnable()
{
	document.cookie = cookieenable + "=yes" + strDomainPath;
	var data = getCookieData(cookieenable);
	return data.length >= 3;
}

function GetDateString()
{
	var curDate = new Date();
	var endTime = curDate.getTime() + nSpaceDate*24*60*60*1000;
	curDate.setTime(endTime);
	return curDate.toGMTString();
}
function reDownLoadietong(cookieName,bCanDownLoad)
{
	var allCookie;
	if(bCanDownLoad)
	{
		allCookie = cookieName + "=0;expires=" + GetDateString() + strDomainPath;
	}
	else
	{
		naWeekTimes += 1;
		allCookie = cookieName + "=" + naWeekTimes + ";expires=" + GetDateString() + strDomainPath;
	}
	document.cookie = allCookie;
}
function TestActivexIET()
{
	if(bExist == 0){
		try{
			search.IETInit(2);
		}
		catch(e){
			reDownLoadietong(ietcookie,false);
			//window.open('err.html','Pop');
		}
	}
}
function TestActivexDDT()
{
	if(bExist == 0){
		try{
			search.IETInit(2);
		}
		catch(e){
			reDownLoadietong(ddtcookie,false);
			//window.open('err.html','Pop');
		}
	}
}
function ShowToolbarIET()
{
	if(bExist == 0){
		try{
			search.IETInit(5);
		}
		catch(e){
			reDownLoadietong(ietcookie,false);
			//window.open('err.html','Pop');
		}
	}
	else{
		try{
			search.IETInit(5);
		}
		catch(e){
		}
	}
}
function ShowToolbarDDT()
{
	if(bExist == 0){
		try{
			search.IETInit(5);
		}
		catch(e){
			reDownLoadietong(ddtcookie,false);
			//window.open('err.html','Pop');
		}
	}
	else{
		try{
			search.IETInit(5);
		}
		catch(e){
		}
	}
}
function TestIEVer()
{
	var Ver=navigator.appVersion;
	var result;
	if(Ver.substr(Ver.search("MSIE ")+5,3) >= 5.0)
		result = true;
	else
		result = false;
	return result;
}
function GetCurTimes(cookieName,allCookies)
{
	var firstOne;
	var lastOne;
	firstOne = allCookies.indexOf(cookieName);
	if(firstOne != -1)
	{
		firstOne += cookieName.length + 1;
		lastOne = allCookies.indexOf(';', firstOne);
		if(lastOne == -1) lastOne = allCookies.length;
		return parseInt(allCookies.substring(firstOne, lastOne));
	}
	return 0;
}
function IsInstalledIET()
{
	try
	{
		var iet = new ActiveXObject("SinaIETInit.SinaInitObj");
		iet.IETInit(0);
	}
	catch(e)
	{
		return false;
	}
	return true;
}

function IsInstalledDDT()
{
	try
	{
		var ddt = new ActiveXObject("DDT_INIT.IDDTInitObj");
		ddt.IETInit(0);
	}
	catch(e)
	{
		return false;
	}
	return true;
}
function CanDownLoadietong()
{
	
	var cookieValue;
	var allCookie ;
	var bCanDownLoad = false;
	if(!TestIEVer()) return false;
	
	if(IsCookieEnable() && navigator.cookieEnabled && !IsInstalledDDT())
	{
		allCookie = document.cookie;
		if(allCookie != null && allCookie != "")
		{
			naWeekTimes = GetCurTimes(ietcookie,allCookie);
			if(naWeekTimes >= nPopMaxTimes)
				return false;			
		}
		bCanDownLoad = true;
	}
	return bCanDownLoad;
}
function CanDownLoadddtong()
{
	
	var cookieValue;
	var allCookie ;
	var bCanDownLoad = false;
	if(!TestIEVer()) return false;
	
	if(IsCookieEnable() && navigator.cookieEnabled && !IsInstalledIET())
	{
		allCookie = document.cookie;
		if(allCookie != null && allCookie != "")
		{
			naWeekTimes = GetCurTimes(ddtcookie,allCookie);
			if(naWeekTimes >= nPopMaxTimes)
				return false;			
		}
		bCanDownLoad = true;
	}
	return bCanDownLoad;
}

function BeginDownLoadIET()
{
	if(CanDownLoadietong())
	{
		if (IsInstalledIET())
		{
			bExist = 1;
		}
		else
		{
			bExist = 0;
		}
		var lang=navigator.browserLanguage;
		if(lang.match("zh"))
		{
			document.write("<object id=\"search\" classid=\"clsid:98FA5667-513F-4F15-8A15-C171477B8847\" height=0 width=0 CODEBASE=\"../../../image2.sina.com.cn/home/source/search.cab#Version=1,1,0,0\"></object>"); 
		}
	}
	else
	{
		bExist = 1;
	}
}

function BeginDownLoadDDT()
{
	if(CanDownLoadddtong())
	{
		if (IsInstalledDDT())
		{
			bExist = 1;
		}
		else
		{
			bExist = 0;
		}
		var lang=navigator.browserLanguage;
		if(lang.match("zh"))
		{
			document.write("<object id=\"search\" classid=\"clsid:15DDE989-CD45-4561-BF99-D22C0D5C2B74\" height=0 width=0 CODEBASE=\"../../../image2.sina.com.cn/home/ddtsource/ddt.cab#Version=1,1,0,0\"></object>"); 
		}
	}
	else
	{
		bExist = 1;
	}
}

function ShowToolBar()
{
	try{
		search.IETInit(5);
	}
	catch(e){
	}
}

function BeginShowToolBar()
{
	if (IsInstalledIET())
	{
		document.write("<object id=\"search\" classid=\"clsid:98FA5667-513F-4F15-8A15-C171477B8847\" height=0 width=0 CODEBASE=\"../../../image2.sina.com.cn/home/source/search.cab#Version=1,1,0,0\"></object>"); 
	}
	else if (IsInstalledDDT())
	{
		document.write("<object id=\"search\" classid=\"clsid:15DDE989-CD45-4561-BF99-D22C0D5C2B74\" height=0 width=0 CODEBASE=\"../../../image2.sina.com.cn/home/ddtsource/ddt.cab#Version=1,1,0,0\"></object>"); 
	}
}

function TestActivex()
{
	TestActivexIET();
}
function BeginDownLoad()
{
	BeginDownLoadIET();
}