A couple guides.md

Plug-in fallback resources:

• https://gist.github.com/JamieMason/742052
• http://www.matthewratzloff.com/blog/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/#quicktime-player

Finding plugins in IE.js

// via http://snipplr.com/view/6239/

var plugins = {
	hasAcrobat:function() {
		if (!window.ActiveXObject) return false;
		try { if (new ActiveXObject('AcroPDF.PDF')) return true;}
		catch (e) {}
		try { if (new ActiveXObject('PDF.PdfCtrl')) return true;}
		catch (e) {}
		return false;
	},
	hasFlash: function() {
		if (!window.ActiveXObject) return false;
		try {if (new ActiveXObject('ShockwaveFlash.ShockwaveFlash')) return true;}
	    	catch (e) { return false;}
	},
	hasJava: function() {
		return (!navigator.javaEnabled());
	},
	hasQuickTime: function() {
		if (!window.ActiveXObject) return false;
		try { if (new ActiveXObject('QuickTime.QuickTime')) return true;}
		catch (e) {}
		try {if(new ActiveXObject('QuickTimeCheckObject.QuickTimeCheck')) return true;}
		catch (e) {};
		return false;
	},
	hasRealPlayer: function() {
		if (!window.ActiveXObject) return false;
	    	var definedControls = [
			'rmocx.RealPlayer G2 Control',
			'rmocx.RealPlayer G2 Control.1',
			'RealPlayer.RealPlayer(tm) ActiveX Control (32-bit)',
			'RealVideo.RealVideo(tm) ActiveX Control (32-bit)',
			'RealPlayer'
		];
		for (var i = 0; i < definedControls.length; i++) {
			try {if(new ActiveXObject(definedControls[i])) return true;}
			catch (e) {continue;}
		}
		return false;
	},
	hasShockwave: function() {
		if (!window.ActiveXObject) return false;
	    	try {if(new ActiveXObject(’SWCtl.SWCtl’)) return true;}
		catch (e) {return false;}
	},
	hasWMP: function() {
		if (!window.ActiveXObject) return false;
	  	try {if(new ActiveXObject(’WMPlayer.OCX’)) return true;}
		catch (e) { return false;}
	}
}

QuickTime plug-in verification.js

function noQTfallback() {

/*
  var vid1 = document.getElementById("id13");
  var vid1gif = document.createElement('img');
  vid1gif.setAttribute("src","http://i.minus.com/iLq6tYSko3c4A.gif");
  vid1gif.setAttribute("style",vid1.getAttribute("style"));
  document.getElementById("body_layer").replaceChild(vid1gif, vid1);

  var vid2 = document.getElementById("id12");
  var vid2gif = document.createElement('img');
  vid2gif.setAttribute("src","http://i.minus.com/ibyZTHSYnZ5nCs.gif");
  vid2gif.setAttribute("style","height: 230px; left: 662px; position: absolute; top: 698px; z-index: 1;");
  document.getElementById("body_layer").replaceChild(vid2gif, vid2);
*/

}

function IEhasQT() {
  if (!window.ActiveXObject) return false;
  try { if(new ActiveXObject("QuickTime.QuickTime")) return true; }
  catch (e) {}
  try { if (new ActiveXObject('QuickTimeCheckObject.QuickTimeCheck')) return true; }
  catch (e) {}
  return false;
}

function checkQT() {
var p = navigator.plugins;
var QT = false; // assume you don't have it
  for (i=0;i<p.length;i++) {
    for (j=0;j<p[i].length;j++) {
      if (p[i][j].type == "video/quicktime") {
      QT = true;
      return true;
      }
      else continue;
      return false;
    }
  }
}