✔ ?flash detection skript?

<script type="text/javascript">
<!--
arrPlugins=new Array();

arrPlugins['Flash'] = ['application/x-shockwave-flash', 'ShockwaveFlash.ShockwaveFlash.1'];

function detect_plugin(plugin)
{
    
try
    {
       objPlugin = (document.all && !window.opera)
                    ? new ActiveXObject(arrPlugins[plugin][1])
                    : navigator.mimeTypes[arrPlugins[plugin][0]].enabledPlugin; 
    }
catch(e)
    {
       alert(plugin+'-Plugin nicht vorhanden oder Ausführung untersagt');
       return true;
    }
    alert(plugin+'-Plugin ist vorhanden');
}
detect_plugin('Flash');
//-->
</script>

arrPlugins['Java'] = ['application/x-java-vm', 'ShockwaveFlash.ShockwaveFlash.1'];

<script language=JavaScript>
    
    function FlashInstalled()
    {
    	result = false;
    
    	if (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"])
    	{
    		result = navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin;
    	}
    	else if (document.all && (navigator.appVersion.indexOf("Mac")==-1))
    	{
 		// IE Windows only -- check for ActiveX control, have to hide code in eval from Netscape (doesn't like try)
 		eval ('try {var xObj = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");if (xObj)	result = true; xObj = null; } catch (e)	{}');
    	}
    	return result;
    }
    
    if (FlashInstalled()){
    document.location="menuswf.htm";// flashseite
    }else{
    document.location="menuhtml.htm";// HTML seite wenn kein flash
    }
    
    </script>
    <noscript>
    hier der inhalt fuer weder flash noch javascript
    </noscript>

navigator.javaEnabled()