function spFlashDetectInit() {
    if(!document.getElementById('spFlashDetectInitScript')) {
        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;
        if(isIE && isWin && !isOpera){
            document.write('<script id="spFlashDetectInitScript" type="text/vbscript">\n');
            document.write('Function spGetSwfVer(i)\n');
            document.write('on error resume next\n');
            document.write('Dim swControl, swVersion\n');
            document.write('swVersion = 0\n');
            document.write('set swControl = CreateObject("ShockwaveFlash.ShockwaveFlash." + CStr(i))\n');
            document.write('if (IsObject(swControl)) then\n');
            document.write('swVersion = swControl.GetVariable("$version")\n');
            document.write('end if\n');
            document.write('spGetSwfVer = swVersion\n');
            document.write('End Function\n');
            document.write('<\/scr'+'ipt>\n');
            document.write('\n');
        } 
        else {
            document.write('<script id="spFlashDetectInitScript" type="text/javascript">\n');
            document.write('function spGetSwfVer(i)\n');
            document.write('{\n');
            document.write('if (navigator.plugins != null && navigator.plugins.length > 0) {\n');
            document.write('if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {\n');
            document.write('var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";\n');
            document.write('var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;\n');
            document.write('descArray = flashDescription.split(" ");\n');
            document.write('tempArrayMajor = descArray[2].split(".");\n');
            document.write('versionMajor = tempArrayMajor[0];\n');
            document.write('versionMinor = tempArrayMajor[1];\n');
            document.write('if ( descArray[3] != "" ) {tempArrayMinor = descArray[3].split("r");} else {tempArrayMinor = descArray[4].split("r");}\n');
            document.write('versionRevision=tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;\n');
            document.write('// variable flashVer zusammensetzen -> analog zu ie\n');
            document.write('flashVer="x " + versionMajor + "," + versionMinor + "," + versionRevision;\n');
            document.write('} else {\n');
            document.write('flashVer=-1;\n');
            document.write('}\n');
            document.write('}\n');
            document.write('// MSN/WebTV 2.6 supports Flash 4\n');
            document.write('else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;\n');
            document.write('// WebTV 2.5 supports Flash 3\n');
            document.write('else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;\n');
            document.write('// older WebTV supports Flash 2\n');
            document.write('else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;\n');
            document.write('// Can\'t detect in all other cases\n');
            document.write('else {flashVer = -1;}\n');
            document.write('return flashVer;\n');
            document.write('}\n');
            document.write('<\/scr'+'ipt>\n');
            document.write('\n');
        }
    }
}

function spFlashDetect(reqMajorVer, reqMinorVer, reqRevision) {
    var reqVer = parseFloat(reqMajorVer + "." + reqRevision);
    // loop backwards through the versions until we find the newest version	
    for (var i=25;i>0;i--) {
        versionStr = spGetSwfVer(i);
        if (versionStr == -1 ) { 
            return false;
        } 
        else if (versionStr != 0) {
            var versionArray = new Array();
            var tempArray   = versionStr.split(" ");
            var tempString  = tempArray[1];
            versionArray    = tempString .split(",");
            var versionMajor    = versionArray[0];
            var versionMinor    = versionArray[1];
            var versionRevision = versionArray[2];
            var versionString   = versionMajor + "." + versionRevision;   // 7.0r24 == 7.24
            var versionNum      = parseFloat(versionString);
            // is the major.revision >= requested major.revision AND the minor version >= requested minor
            if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
                return true;
            } 
            else {
                return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );	
            }
        }
    }
}