var flashVersion = -1;
var dontKnow = false;	
var agent = navigator.userAgent.toLowerCase(); 

// NS3+ and Opera3+ (support plugin array):  check for Flash plugin in plugin array
if (navigator.plugins != null && navigator.plugins.length > 0) {
	var flashPlugin = navigator.plugins['Shockwave Flash'];	
	if (typeof flashPlugin == 'object') { 
		if (flashPlugin.description.indexOf('7.') != -1) flashVersion = 7;
		else if (flashPlugin.description.indexOf('6.') != -1) flashVersion = 6;
		else if (flashPlugin.description.indexOf('5.') != -1) flashVersion = 5;
		else if (flashPlugin.description.indexOf('4.') != -1) flashVersion = 4;
		else if (flashPlugin.description.indexOf('3.') != -1) flashVersion = 3;
	}
}
// IE4+ on Win32:  attempt to create an ActiveX object using VBScript
else if (agent.indexOf("msie") != -1 && parseInt(navigator.appVersion) >= 4 && agent.indexOf("win")!=-1 && agent.indexOf("16bit")==-1) {
	document.write('<scr' + 'ipt language="VBScript"\> \n');
	document.write('on error resume next \n');
	document.write('if IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.7")) then flashVersion = 7 \n');
	document.write('if flashVersion < 7 and IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.5")) then flashVersion = 6 \n');
	document.write('if flashVersion < 6 and IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.5")) then flashVersion = 5 \n');
	document.write('if flashVersion < 5 and IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.4")) then flashVersion = 4 \n');
	document.write('if flashVersion < 4 and IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.3")) then flashVersion = 3 \n');		
	document.write('</scr' + 'ipt\> \n'); 
	

	
}
// WebTV 2.5 supports flash 3
else if (agent.indexOf("webtv/2.5") != -1) flashVersion = 3;
// older WebTV supports flash 2
else if (agent.indexOf("webtv") != -1) flashVersion = 2;
// Can't detect in all other cases
else {
	flashVersion = -1;
	dontKnow = true;
}