// detect flash version via javascript

// this is the global variable that the iFlashVersion gets assigned to
// either from flashdetect.js (this file) or flashdetect.vbs
var iFlashVersion = 0;

// the minimum required version of flash
// moved to detect call in html - JT
// var iMinimumVersion = 7;

// the user-agent string (for sniffing various information)
var sAgent = navigator.userAgent.toLowerCase();

// assign the flash version if we can (if not then it should
// get assinged in flashdetect.vbs)
if (navigator.plugins != null && navigator.plugins.length > 0)
{
    // grab the Flash plugin object
    var oFlashPlugin = navigator.plugins['Shockwave Flash'];

	// TODO: Fix this code so it is future proof. Right now it will
	// break after Flash Player reaches version 10.

    // The only browsers we support are the ones that either
    // support the navigator plugin array or the activex flash
    // object (see "detect.vbs"). We do not support other browsers.
    if (typeof oFlashPlugin == 'object')
    {
    	if (oFlashPlugin.description.indexOf('11.') != -1)
        {
            iFlashVersion = 11;
        }
    	else if (oFlashPlugin.description.indexOf('10.') != -1)
        {
            iFlashVersion = 10;
        }
		else if (oFlashPlugin.description.indexOf('9.') != -1)
        {
            iFlashVersion = 9;
        }
		else if (oFlashPlugin.description.indexOf('8.') != -1)
        {
            iFlashVersion = 8;
        }
        else if (oFlashPlugin.description.indexOf('7.') != -1)
        {
            iFlashVersion = 7;
        }
        else if (oFlashPlugin.description.indexOf('6.') != -1)
        {
            iFlashVersion = 6;
        }
        else if (oFlashPlugin.description.indexOf('5.') != -1)
        {
            iFlashVersion = 5;
        }
        else if (oFlashPlugin.description.indexOf('4.') != -1)
        {
            iFlashVersion = 4;
        }
        else if (oFlashPlugin.description.indexOf('3.') != -1)
        {
            iFlashVersion = 3;
        }
    }
}
else
{
    // Can't detect in all other cases
    iFlashVersion = -1;
}

/**
* Read the global variables "iFlashVersion" which should already be
* assigned and return true/false based on the test results.
* Note: this function should only be called by the pages onload event
*
* @param boolean debug whether to alert a debug statement or not, default = false
* @return boolean whether the test was successful or not
*/
function testFlashVersion()
{
    // pass in a true argument to turn debugging on
    var debug = (arguments.length == 1) ? arguments[0] : false;

    // capture debugging details
    var detail = null;

    // capture the test result
    var result = false;

    // Redirect to the appropriate url
    if (iFlashVersion >= iMinimumVersion)
    {
        // all is good
        detail = 'test successful: v' + iFlashVersion + ' is installed';
        result = true;
    }
    else if (iFlashVersion > 0)
    {
        // they have flash, but the version isn't recent enough
        detail = 'test failed: flash needs upgraded to v' + iMinimumVersion + ', v' + iFlashVersion + ' is installed';
        result = false;
    }
    else if (iFlashVersion == 0)
    {
        // they don't have flash
        detail = 'test failed: flash is not installed';
        result = false;
    }
    else if (iFlashVersion == -1 || iFlashVersion == null)
    {
        // we were unable to detect which version of flash or
        // whether they even have flash on their system
        detail = 'test failed: unable to detect whether flash is installed or not';
        result = false;
    }
    else
    {
        // no clue what happened
        detail = 'test failed: unknown error';
        result = false;
    }

    // output debugging details (if applicable)
    if (debug) alert(detail);

    // return our findings
    return(result);
}

/**
* A "simple as simple gets" cookie test
*
* @return boolean whether cookie support is enabled or not
*/
function testCookies()
{
    if (document.cookie.indexOf('testcookie=test') != -1)
    {
        // we already have a testcookie
        return(true);
    }
    else
    {
        // write it
        document.cookie = 'testcookie=test';

        // test it
        if (document.cookie.indexOf('testcookie=test') != -1)
        {
            return(true);
        }
        else
        {
            return(false);
        }
    }
}

/**
* A wrapper detection function, mixes browser, flash and cookie test together
* a redirection to system.jsp also occurs if false is to be returned (so false
* is actually never returned)
*
* @return boolean whether the combined detection tests passed or not
*/
function detect()
{
    var bBrowser	= (document.getElementById) ? true : false;
    var bFlash		= (testFlashVersion()) ? true : false;
    var bCookie		= (testCookies()) ? true : false;
    var aParam		= new Array();
    var sQuery		= null;

    if (!bBrowser || !bFlash || !bCookie)
    {
        aParam[aParam.length] = 'javascript=1';	// obviously this one is true
        aParam[aParam.length] = (!bBrowser) ? 'browser=0' : 'browser=1';
        aParam[aParam.length] = (!bCookie) ? 'cookie=0' : 'cookie=1';
        aParam[aParam.length] = (!bFlash) ? 'flash=0' : 'flash=1';
        aParam[aParam.length] = 'flashversion=' + iFlashVersion;
        sQuery = aParam.join('&');

        // now do the redirect
        location.replace('/siterequirements.jsp' + '?' + sQuery);
        return(false);
    }
    else
    {
        // all is well
        return(true);
    }
}