// Flash Player Version Detection - Rev 1.5
// Detect Client Browser type
// Copyright 2006 Adobe Systems, Inc. All rights reserved.
var isIE	= (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin	= (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer()
{
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	var flashVer = -1;

	if (navigator.plugins != null && navigator.plugins.length > 0) 
	{
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) 
		{
			var swVer2				= navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription	= navigator.plugins["Shockwave Flash" + swVer2].description;
			var descArray			= flashDescription.split(" ");
			var tempArrayMajor		= descArray[2].split(".");
			var versionMajor		= tempArrayMajor[0];
			var versionMinor		= tempArrayMajor[1];

			if ( descArray[3] != "" ) 
			{
				tempArrayMinor = descArray[3].split("r");
			} 
			else 
			{
				tempArrayMinor = descArray[4].split("r");
			}

			var versionRevision		= tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
			var flashVer			= versionMajor + "." + versionMinor + "." + versionRevision;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	else if ( isIE && isWin && !isOpera ) 
	{
		flashVer = ControlVersion();
	}

	return flashVer;
}

function ControlVersion()
{
	var version;
	var axo;
	var e;

	// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

	try {
		// version will be set for 7.X or greater players
		axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
		version = axo.GetVariable("$version");
	} catch (e) {
	}

	if (!version)
	{
		try {
			// version will be set for 6.X players only
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
			
			// installed player is some revision of 6.0
			// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
			// so we have to be careful. 
			
			// default to the first public version
			version = "WIN 6,0,21,0";

			// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
			axo.AllowScriptAccess = "always";

			// safe to call for 6.0r47 or greater
			version = axo.GetVariable("$version");

		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 4.X or 5.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 3.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = "WIN 3,0,18,0";
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 2.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
			version = "WIN 2,0,0,11";
		} catch (e) {
			version = -1;
		}
	}
	
	return version;
}

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available 
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) 
{ 
	versionStr = GetSwfVer(); 

	if (versionStr == -1 ) 
	{ 
		return false; 
	} 
	else if (versionStr != 0) 
	{ 
		if(isIE && isWin && !isOpera) 
		{	// Given "WIN 2,0,0,11" 
			tempArray		= versionStr.split(" ");		// ["WIN", "2,0,0,11"] 
			tempString		= tempArray[1];					// "2,0,0,11" 
			versionArray	= tempString.split(",");		// ['2', '0', '0', '11'] 
		} 
		else 
		{ 
			versionArray	= versionStr.split("."); 
		} 
		
		var versionMajor	= versionArray[0]; 
		var versionMinor	= versionArray[1]; 
		var versionRevision = versionArray[2];

		// is the major.revision >= requested major.revision AND the minor version >= requested minor 
		if (versionMajor > parseFloat(reqMajorVer)) 
		{ 
			return true; 
		} 
		else if (versionMajor == parseFloat(reqMajorVer)) 
		{ 
			if (versionMinor > parseFloat(reqMinorVer)) return true; 
			else if (versionMinor == parseFloat(reqMinorVer)) 
			{ 
				if (versionRevision >= parseFloat(reqRevision)) return true; 
			} 
		} 
		
		return false; 
	} 
}