/*
        Flash Detect
        
        Function Call:	FlashDetect.DetectVersion(major, minor, revision).
        
        Return:			True or False
                                        If flash detect is successful, function returns true.  Otherwise, returns false
                                        
        Example:		if (FlashDetect.DetectVersion(9,0,26)) {
                                                alert('You have the right version of Flash');
                                        } else {
                                                alert('You do not have flash');
                                        }
*/
var FlashDetect = {
        version : {
                Major:0,
                Minor:0,
                Revision:0
        },
        
        isIE  : (navigator.appVersion.indexOf("MSIE") != -1) ? true : false,
        isWin : (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false,
        isOpera : (navigator.userAgent.indexOf("Opera") != -1) ? true : false,	
        
        GetSwfVer : function (){
                // NS/Opera version >= 3 check for Flash plugin in plugin array
                var flashPlugs = new Array;
                if (navigator.plugins != null && navigator.plugins.length > 0) {
                        for(x=0; x< navigator.plugins.length; x++){
                                if(navigator.plugins[x].name.indexOf('Shockwave Flash')>=0){
                                        flashPlugs.push(navigator.plugins[x]);
                                }
                        }

                        var version = [0,0,0];
                        
                        for(x=0; x< flashPlugs.length; x++){
                                var flashDescription = flashPlugs[x].description;
                                var descArray = flashDescription.split(" ");
                                var tempVersion = descArray[2].split(".");
                                tempVersion.push(parseInt(descArray[descArray.length-1].substr(1,descArray[descArray.length-1].length)));
                                
                                var major = parseInt(tempVersion[0]);
                                var minor = parseInt(tempVersion[1]);
                                var revis = parseInt(tempVersion[2]);
                                tempVersion = [major,minor,revis];
                                
                                if ((tempVersion[0]>version[0]) || (tempVersion[0]==version[0] && tempVersion[1]>version[1]) || (tempVersion[0]==version[0] && tempVersion[1]==version[1] && tempVersion[2]>version[2])){
                                        version = tempVersion;
                                }
                        }
                        this.version.Major = version[0];
                        this.version.Minor = version[1];
                        this.version.Revision = version[2];
                }
                // 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 ( FlashDetect.isIE && FlashDetect.isWin && !FlashDetect.isOpera ) {
                        flashVer = this.ControlVersion();
                        if (flashVer==-1) return this.version;
                        
                        flashVerString = flashVer + '';
                        if(flashVerString.indexOf('WIN')>=0){
                                flashVer = flashVerString.substr((flashVerString.indexOf('WIN')+4) , flashVerString.length);
                        }
                        version = flashVer.split(',');
                        this.version.Major = version[0];
                        this.version.Minor = version[1];
                        this.version.Revision = version[2];
                }
                return this.version;
        },
        ControlVersion : function(){
                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.9");
                        version = axo.GetVariable("$version");
                } catch (e) {
                }
                
                
                try {
                        // version will be set for 7.X or greater players
                        axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.8");
                        version = axo.GetVariable("$version");
                } catch (e) {
                }
                
                
                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;
        },
        DetectVersion : function (major,minor,revision){
                var compare = this.GetSwfVer();
                return ((compare.Major>major) || (compare.Major==major && compare.Minor>minor) || (compare.Major==major && compare.Minor==minor && compare.Revision>=revision));
        }
}