var WM_startTagFix = '<'+'/';
var msie_windows = 0;
if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)){
  msie_windows = 1;
  document.writeln('<script language="VBscript">');
  document.writeln('\'This will scan for plugins for all versions of Internet Explorer that have a VBscript engine version 2 or greater.');
  document.writeln('\'This includes all versions of IE4 and beyond and some versions of IE 3.');
  document.writeln('Dim WM_detect_through_vb');
  document.writeln('WM_detect_through_vb = 0');
  document.writeln('If ScriptEngineMajorVersion >= 2 then');
  document.writeln('  WM_detect_through_vb = 1');
  document.writeln('End If');
  document.writeln('Function WM_activeXDetect(activeXname)');
  document.writeln('  on error resume next');
  document.writeln('  If ScriptEngineMajorVersion >= 2 then');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('     WM_activeXDetect = IsObject(CreateObject(activeXname))');
  document.writeln('     If (err) then');
  document.writeln('        WM_activeXDetect = False');
  document.writeln('     End If');
  document.writeln('   Else');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('   End If');
  document.writeln('End Function');
  document.writeln(WM_startTagFix+'script>');
}

function WM_pluginDetect(plugindescription, pluginxtension, pluginmime, activeXname){
	var i,plugin_undetectable=0,detected=0, daPlugin=new Object();
	if (msie_windows && WM_detect_through_vb){
		plugin_undetectable = 0;
	} else {
		plugin_undetectable = 1;
	}
	if(navigator.plugins) {
		numPlugins = navigator.plugins.length;
		if (numPlugins > 1) {
			if (navigator.mimeTypes && navigator.mimeTypes[pluginmime] && navigator.mimeTypes[pluginmime].enabledPlugin && (navigator.mimeTypes[pluginmime].suffixes.indexOf(pluginxtension) != -1)) { // seems like we have it, let's just make sure and check the version (if specified)
				if ((navigator.appName == 'Netscape') && (navigator.appVersion.indexOf('4.0') != -1)) { // stupid, stupid Netscape can't handle the references to navigator.plugins by number, sooo...
				for(i in navigator.plugins) {
					if ((navigator.plugins[i].description.indexOf(plugindescription) != -1) || (i.indexOf(plugindescription) != -1)) { // some versions of quicktime have no description. feh!
						detected=1;
						break;
					}
				}
			} else {
				for (i = 0; i < numPlugins; i++) {
					daPlugin = navigator.plugins[i];
					if ((daPlugin.description.indexOf(plugindescription) != -1) || (daPlugin.name.indexOf(plugindescription) != -1)) {
						detected=1;
						break;
					}
				}
	      }
				// Mac weirdness
				if (navigator.mimeTypes[pluginmime] == null) {
				detected = 0;
			}
		}
			return detected;
		} else if((msie_windows == 1) && !plugin_undetectable){
			return WM_activeXDetect(activeXname);
		} else {
			return 0;
		}
	} else {
		return 0;
	}
}

// this next function just makes it easy to detect the common plugins
function WM_easyDetect(whichPlugin) {
	var isItThere = 0;
	if( (whichPlugin == 'flash') || (whichPlugin == 'Flash') ) {
		isItThere = WM_pluginDetect('Flash', 'swf', 'application/x-shockwave-flash', 'ShockwaveFlash.ShockwaveFlash');
	} else if( (whichPlugin == 'metastream') || (whichPlugin == 'Flash') ) {
		isItThere = WM_pluginDetect('MetaStream', 'mts', 'application/metastream', 'Metastream.Metastream.1');
	} else {
		alert('Not specified which plug-in to look for');
	}
	return isItThere;
}