// $Revision:: 2 $
// $Author:: Tennant_a $
// $Date:: 31/10/02 15:28 $

// based on script originally written by colin moock

// boolean to return to function
var blnFlashDetected = false;

// System globals
var flash2Installed = false;
var flash3Installed = false;
var flash4Installed = false;
var flash5Installed = false;
var flash6Installed = false;
var maxVersion = 6;
var actualVersion = 0;

var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false;

//vbscript detection on ie win.
if(isIE && isWin){
  document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n');
  document.write('on error resume next \n');
  document.write('flash2Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.2"))) \n');
  document.write('flash3Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.3"))) \n');
  document.write('flash4Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.4"))) \n');
  document.write('flash5Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.5"))) \n');  
  document.write('flash6Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.6"))) \n');  
  document.write('</SCR' + 'IPT\> \n'); // break up end tag so it doesn't end the script
}

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;
	blnFlashDetected = true;
		if(arguments.length >= 1)//check if version number required through function
		{
		blnFlashDetected = (arguments[0] <= actualVersion ? true : false)
		}
	}
  }

	return blnFlashDetected;
}