//
// FlashDetect.js
//

// Author: Colin Jaggs
// Date: 19th March 2004
// Content: Flash Detection script (based on Macromedia scripts)

// add the VB script
document.write('<script language="VBScript" type="text/vbscript">' + "\n");
document.write('	Function VBGetSwfVer(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('	VBGetSwfVer = swVersion' + "\n");
document.write('	End Function' + "\n");
document.write('</script>' + "\n");

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;

// JavaScript helper required to detect Flash Player PlugIn version information
function JSGetSwfVer(i)
{
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
      		var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			descArray = flashDescription.split(" ");
			tempArrayMajor = descArray[2].split(".");
			versionMajor = tempArrayMajor[0];
			versionMinor = tempArrayMajor[1];
			if ( descArray[3] != "" ) {
				tempArrayMinor = descArray[3].split("r");
			} else {
				tempArrayMinor = descArray[4].split("r");
			}
      		versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
            flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
      	} else {
			flashVer = -1;
		}
	}

	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;		// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;		// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;		// older WebTV supports Flash 2
	else  flashVer = -1;		// Can't detect in all other cases
	return flashVer;
}

// main function - returns actual version of flash player (if any installed - otherwise returns 0)
function flashPlayer()
{
   	// loop backwards through the versions until we find the newest version
	for (i = 25 ; i > 0; i --)
	{
		if (isIE && isWin && !isOpera) versionStr = VBGetSwfVer(i);		// call VB function to detect flash (only for Win/IE)
		else  versionStr = JSGetSwfVer(i);		// for everything else use the JS function instead

		if (versionStr == -1 ) return 0;
		else if (versionStr != 0)
		{
			if(isIE && isWin && !isOpera)
			{
				tempArray         = versionStr.split(" ");
				tempString        = tempArray[1];
				versionArray      = tempString .split(",");
			} else versionArray      = versionStr.split(".");

			return versionArray[0];		// return major version number only
		}
	}
	return 0;
}