function detectFlash() { 
	if (navigator.plugins) 
	{
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) 
		{
			var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;
			var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));
			flash2Installed = flashVersion == 2; 
			flash3Installed = flashVersion == 3;
			flash4Installed = flashVersion == 4;
			flash5Installed = flashVersion == 5;
			flash6Installed = flashVersion >= 6;
		}
	}

	for (var i = 2; i <= maxVersion; i++) 
	{ 
		if (eval("flash" + i + "Installed") == true) actualVersion = i;
	}

	if(navigator.userAgent.indexOf("WebTV") != -1) actualVersion = 3; 

	if (actualVersion >= requiredVersion) {
		if (useRedirect) {
		window.location.replace(flashPage); 
		}
		hasRightVersion = true; 
	} 
	else { 
		if (useRedirect) {
		window.location.replace((actualVersion >= 2) ? upgradePage : noFlashPage);
		}
	}
}