Help needed - script is beyond me

[uk_martin]

Hi

This is a script available off the Apple web site, designed to sniff/detect browser plug-ins. My interest in using the script primarilly to sniff for the Quicktime plugin, to work with QuicktimeVR movies on my website. (www.kaneinspain.com)

How is this script customised in order to do the following:
a) If Quicktime IS installed, to quietly allow the MOV file to play.
b) If Quicktime is NOT installed, or out of date, the user gets a redirect to the Quicktime download page on the Apple site.

Some assistance on this script is here: http://developer.apple.com/internet/webcontent/detectplugins.html
By the looks of things, it will make sense to those who know their subject, but that's not me, well not to the extent, not yet anyway.

Anyway, thanks in advance for someone's help.

Martin


<script language="JavaScript">
<!--
// initialize a variable to test for JavaScript 1.1.
// which is necessary for the window.location.replace method
var javascriptVersion1_1 = false;
// -->
</script>


<script language="JavaScript1.1">
<!--
javascriptVersion1_1 = true;
// -->
</script>


<script language="JavaScript">
<!--

// initialize global variables
var detectableWithVB = false;
var pluginFound = false;


function goURL(daURL) {
// if the browser can do it, use replace to preserve back button
if(javascriptVersion1_1) {
window.location.replace(daURL);
} else {
window.location = daURL;
}
return;
}

function redirectCheck(pluginFound, redirectURL, redirectIfFound) {
// check for redirection
if( redirectURL && ((pluginFound && redirectIfFound) ||
(!pluginFound && !redirectIfFound)) ) {
// go away
goURL(redirectURL);
return pluginFound;
} else {
// stay here and return result of plugin detection
return pluginFound;
}
}

function canDetectPlugins() {
if( detectableWithVB || (navigator.plugins && navigator.plugins.length > 0) ) {
return true;
} else {
return false;
}
}

function detectFlash(redirectURL, redirectIfFound) {
pluginFound = detectPlugin('Shockwave','Flash');
// if not found, try to detect with VisualBasic
if(!pluginFound && detectableWithVB) {
pluginFound = detectActiveXControl('ShockwaveFlash.ShockwaveFlash.1');
}
// check for redirection
return redirectCheck(pluginFound, redirectURL, redirectIfFound);
}

function detectDirector(redirectURL, redirectIfFound) {
pluginFound = detectPlugin('Shockwave','Director');
// if not found, try to detect with VisualBasic
if(!pluginFound && detectableWithVB) {
pluginFound = detectActiveXControl('SWCtl.SWCtl.1');
}
// check for redirection
return redirectCheck(pluginFound, redirectURL, redirectIfFound);
}

function detectQuickTime(redirectURL, redirectIfFound) {
pluginFound = detectPlugin('QuickTime');
// if not found, try to detect with VisualBasic
if(!pluginFound && detectableWithVB) {
pluginFound = detectQuickTimeActiveXControl();
}
return redirectCheck(pluginFound, redirectURL, redirectIfFound);
}

function detectReal(redirectURL, redirectIfFound) {
pluginFound = detectPlugin('RealPlayer');
// if not found, try to detect with VisualBasic
if(!pluginFound && detectableWithVB) {
pluginFound = (detectActiveXControl('rmocx.RealPlayer G2 Control') ||
detectActiveXControl('RealPlayer.RealPlayer(tm) ActiveX Control (32-bit)') ||
detectActiveXControl('RealVideo.RealVideo(tm) ActiveX Control (32-bit)'));
}
return redirectCheck(pluginFound, redirectURL, redirectIfFound);
}

function detectWindowsMedia(redirectURL, redirectIfFound) {
pluginFound = detectPlugin('Windows Media');
// if not found, try to detect with VisualBasic
if(!pluginFound && detectableWithVB) {
pluginFound = detectActiveXControl('MediaPlayer.MediaPlayer.1');
}
return redirectCheck(pluginFound, redirectURL, redirectIfFound);
}

function detectPlugin() {
// allow for multiple checks in a single pass
var daPlugins = detectPlugin.arguments;
// consider pluginFound to be false until proven true
var pluginFound = false;
// if plugins array is there and not fake
if (navigator.plugins && navigator.plugins.length > 0) {
var pluginsArrayLength = navigator.plugins.length;
// for each plugin...
for (pluginsArrayCounter=0; pluginsArrayCounter < pluginsArrayLength; pluginsArrayCounter++ ) {
// loop through all desired names and check each against the current plugin name
var numFound = 0;
for(namesCounter=0; namesCounter < daPlugins.length; namesCounter++) {
// if desired plugin name is found in either plugin name or description
if( (navigator.plugins[pluginsArrayCounter].name.indexOf(daPlugins[namesCounter]) >= 0) ||
(navigator.plugins[pluginsArrayCounter].description.indexOf(daPlugins[namesCounter]) >= 0) ) {
// this name was found
numFound++;
}
}
// now that we have checked all the required names against this one plugin,
// if the number we found matches the total number provided then we were successful
if(numFound == daPlugins.length) {
pluginFound = true;
// if we've found the plugin, we can stop looking through at the rest of the plugins
break;
}
}
}
return pluginFound;
} // detectPlugin


// Here we write out the VBScript block for MSIE Windows
if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)) {
document.writeln('<script language="VBscript">');

document.writeln('\'do a one-time test for a version of VBScript that can handle this code');
document.writeln('detectableWithVB = False');
document.writeln('If ScriptEngineMajorVersion >= 2 then');
document.writeln(' detectableWithVB = True');
document.writeln('End If');

document.writeln('\'this next function will detect most plugins');
document.writeln('Function detectActiveXControl(activeXControlName)');
document.writeln(' on error resume next');
document.writeln(' detectActiveXControl = False');
document.writeln(' If detectableWithVB Then');
document.writeln(' detectActiveXControl = IsObject(CreateObject(activeXControlName))');
document.writeln(' End If');
document.writeln('End Function');

document.writeln('\'and the following function handles QuickTime');
document.writeln('Function detectQuickTimeActiveXControl()');
document.writeln(' on error resume next');
document.writeln(' detectQuickTimeActiveXControl = False');
document.writeln(' If detectableWithVB Then');
document.writeln(' detectQuickTimeActiveXControl = False');
document.writeln(' hasQuickTimeChecker = false');
document.writeln(' Set hasQuickTimeChecker = CreateObject("QuickTimeCheckObject.QuickTimeCheck.1")');
document.writeln(' If IsObject(hasQuickTimeChecker) Then');
document.writeln(' If hasQuickTimeChecker.IsQuickTimeAvailable(0) Then ');
document.writeln(' detectQuickTimeActiveXControl = True');
document.writeln(' End If');
document.writeln(' End If');
document.writeln(' End If');
document.writeln('End Function');

document.writeln('</scr' + 'ipt>');
}
// -->
</script>