﻿//v1.7
// Flash Player Version Detection
// Detect Client Browser type
// Copyright 2005-2008 Adobe Systems Incorporated.  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;
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;
}
// 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];
	        var versionRevision = descArray[3];
	        if (versionRevision == "") {
		        versionRevision = descArray[4];
	        }
	        if (versionRevision[0] == "d") {
		        versionRevision = versionRevision.substring(1);
	        } else if (versionRevision[0] == "r") {
		        versionRevision = versionRevision.substring(1);
		        if (versionRevision.indexOf("d") > 0) {
			        versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
		        }
	        }
	        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;
}
// 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;
    }
}

