var Installed = false; // is the Flash control installed (plug=in or ActiveX)?
var Version = 0; // control version if installed

/*
 * URL of the Flash self-detecting movie ("sniffer").
 *
 * Reset this if you move the file out of the directory in which the
 * document containing the script that calls MM_FlashDispatch() resides.
 */

var MM_FlashSnifferURL = "detectFlash.swf";

/*
 * Latest available revisions of the Plug-in.
 */

var MM_latestPluginRevision = new Object();
MM_latestPluginRevision["6.0"] = new Object();
MM_latestPluginRevision["5.0"] = new Object();
MM_latestPluginRevision["4.0"] = new Object();
MM_latestPluginRevision["3.0"] = new Object();
MM_latestPluginRevision["2.0"] = new Object();

/*
 * This table must be updated as new versions and revisions of the
 * plug-in are released, in support of the 'requireLatestRevision'
 * option in MM_FlashDispatch().
 */

MM_latestPluginRevision["6.0"]["Windows"] = 47;
MM_latestPluginRevision["6.0"]["Macintosh"] = 47;

MM_latestPluginRevision["5.0"]["Windows"] = 42;
MM_latestPluginRevision["5.0"]["Macintosh"] = 41;

MM_latestPluginRevision["4.0"]["Windows"] = 28;
MM_latestPluginRevision["4.0"]["Macintosh"] = 27;
MM_latestPluginRevision["4.0"]["Unix"] = 12;

MM_latestPluginRevision["3.0"]["Windows"] = 10;
MM_latestPluginRevision["3.0"]["Macintosh"] = 10;

MM_latestPluginRevision["2.0"]["Windows"] = 11;
MM_latestPluginRevision["2.0"]["Macintosh"] = 11;

var MM_FlashControlInstalled;	// is the Flash ActiveX control installed?
var MM_FlashControlVersion;	// ActiveX control version if installed

function MM_FlashInfo()
{
    if (navigator.plugins && navigator.plugins.length > 0)
    {
	this.implementation = "Plug-in";
	this.autoInstallable = false;	// until Netscape SmartUpdate supported

	// Check whether the plug-in is installed:

	if (navigator.plugins["Shockwave Flash"])
	{
	    this.installed = true;

	    // Get the plug-in version and revision:

	    var words =
		navigator.plugins["Shockwave Flash"].description.split(" ");

	    for (var i = 0; i < words.length; ++i)
	    {
		if (isNaN(parseInt(words[i])))
		continue;

		this.version = words[i];
		

		this.revision = parseInt(words[i + 1].substring(1));
	    }
	}
	else
	{
	    this.installed = false;
	}
    }
    else if (MM_FlashControlInstalled != null)
    {
	this.implementation = "ActiveX control";
	this.installed = MM_FlashControlInstalled;
	this.version = MM_FlashControlVersion;
	this.autoInstallable = true;
    }
    else if (MM_FlashDetectedSelf())
    {
	this.installed = true;
	this.implementation = "Plug-in";
	this.autoInstallable = false;
    }

    this.canPlay = MM_FlashCanPlay;
    
    Installed = this.installed
    Version = this.version
}

function MM_FlashDispatch(URL)
{
    var player = new MM_FlashInfo();
    location = URL+'?i='+Installed+'&v='+Version;
}

function MM_FlashRememberIfDetectedSelf(count, units)
{
    // the sniffer appends an empty search string to the URL
    // to indicate that it is the referrer

    if (document.location.search.indexOf("?") != -1)
    {
	if (!count) count = 60;
	if (!units) units = "days";

	var msecs = new Object();

	msecs.minute = msecs.minutes = 60000;
	msecs.hour = msecs.hours = 60 * msecs.minute;
	msecs.day = msecs.days = 24 * msecs.hour;

	var expires = new Date();

	expires.setTime(expires.getTime() + count * msecs[units]);

	document.cookie =
	    'MM_FlashDetectedSelf=true ; expires=' + expires.toGMTString();
    }
}

/*********************************************************************
 * THE FOLLOWING FUNCTIONS ARE NOT PUBLIC.  DO NOT CALL THEM DIRECTLY.
 *********************************************************************/

/*
 * MM_FlashLatestPluginRevision() -- look up latest Flash Player plug-in
 *				     revision for this platform
 *
 * Synopsis:
 *
 *	MM_FlashLatestPluginRevision(playerVersion)
 *
 *	Arguments:
 *
 *	    playerVersion	plug-in version to look up revision of
 *
 *	Returns:
 *
 *	    The latest available revision of the specified version of
 *	    the Flash Player plug-in on this platform, as an integer;
 *	    undefined for versions before 2.0.
 *
 * Description:
 *
 *	This look-up function is only intended to be called internally.
 */

function MM_FlashLatestPluginRevision(playerVersion)
{
    var latestRevision;
    var platform;

    if (navigator.appVersion.indexOf("Win") != -1)
	platform = "Windows";
    else if (navigator.appVersion.indexOf("Macintosh") != -1)
	platform = "Macintosh";
    else if (navigator.appVersion.indexOf("X11") != -1)
	platform = "Unix";

    latestRevision = MM_latestPluginRevision[playerVersion][platform];

    return latestRevision;
}


/*
 * MM_FlashCanPlay() -- check whether installed Flash Player can play content
 *
 * Synopsis:
 *
 *	MM_FlashCanPlay(contentVersion, requireLatestRevision)
 *
 *	Arguments:
 *
 *	    contentVersion		version of Flash software used to
 *					author content
 *
 *	    requireLatestRevision	Boolean indicating whether latest
 *					revision of plug-in should be required
 *
 *	Returns:
 *
 *	    true if the installed player can play the indicated content;
 *	    false otherwise.
 *
 * Description:
 *
 *	This function is not intended to be called directly, only
 *	as an instance method of MM_FlashInfo.
 */

function MM_FlashCanPlay(contentVersion, requireLatestRevision)
{
    var canPlay;

    if (this.version)
    {
	canPlay = (parseInt(contentVersion) <= this.version);

	if (requireLatestRevision)
	{
	    if (this.revision &&
		this.revision < MM_FlashLatestPluginRevision(this.version))
	    {
		canPlay = false;
	    }
	}
    }
    else
    {
	canPlay = MM_FlashDetectedSelf();
    }

    return canPlay;
}


/*
 * MM_FlashDetectedSelf() -- recall whether Flash Player has detected itself
 *
 * Synopsis:
 *
 *	MM_FlashDetectedSelf()
 *
 *	Returns:
 *
 *	    true if a cookie signifying that Flash Player has detected itself
 *	    is set; false otherwise.
 *
 * Description:
 *
 *	This function is only meant to be called internally.
 */

function MM_FlashDetectedSelf()
{
    return (document.cookie.indexOf("MM_FlashDetectedSelf") != -1);
}