// JavaScript Document
// EmbedFlash dynamically creates the Object or Embed tag for embedding Flash into a webpage
// Developed by: Adam Martinez
// For: www.websitejockey.com
// Date: 4/8/2010
function EmbedFlash(){
	this.altContent = '';
	this.requiredMajorVersion = 9;
	this.requiredMinorVersion = 0;
	this.requiredRevision = 45;
	this.isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
	this.isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
	this.isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;	
	this.ControlVersion = function(){
		var version;
		var axo;
		var e;
	
		// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry
	
		try {
			// version will be set for 7.X or greater players
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	
		if (!version)
		{
			try {
				// version will be set for 6.X players only
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
				
				// installed player is some revision of 6.0
				// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
				// so we have to be careful. 
				
				// default to the first public version
				version = "WIN 6,0,21,0";
	
				// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
				axo.AllowScriptAccess = "always";
	
				// safe to call for 6.0r47 or greater
				version = axo.GetVariable("$version");
	
			} catch (e) {
			}
		}
	
		if (!version)
		{
			try {
				// version will be set for 4.X or 5.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
				version = axo.GetVariable("$version");
			} catch (e) {
			}
		}
	
		if (!version)
		{
			try {
				// version will be set for 3.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
				version = "WIN 3,0,18,0";
			} catch (e) {
			}
		}
	
		if (!version)
		{
			try {
				// version will be set for 2.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				version = "WIN 2,0,0,11";
			} catch (e) {
				version = -1;
			}
		}
		
		return version;
	}
	
	// JavaScript helper required to detect Flash Player PlugIn version information
	this.GetSwfVer = function(){
		// NS/Opera version >= 3 check for Flash plugin in plugin array
		var flashVer = -1;
		
		if (navigator.plugins != null && navigator.plugins.length > 0) {
			if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
				var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
				var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
				var descArray = flashDescription.split(" ");
				var tempArrayMajor = descArray[2].split(".");			
				var versionMajor = tempArrayMajor[0];
				var versionMinor = tempArrayMajor[1];
				var versionRevision = descArray[3];
				if (versionRevision == "") {
					versionRevision = descArray[4];
				}
				if (versionRevision[0] == "d") {
					versionRevision = versionRevision.substring(1);
				} else if (versionRevision[0] == "r") {
					versionRevision = versionRevision.substring(1);
					if (versionRevision.indexOf("d") > 0) {
						versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
					}
				}
				var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
			}
		}
		// MSN/WebTV 2.6 supports Flash 4
		else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
		// WebTV 2.5 supports Flash 3
		else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
		// older WebTV supports Flash 2
		else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
		else if ( this.isIE && this.isWin && !this.isOpera ) {
			flashVer = this.ControlVersion();
		}	
		return flashVer;
	}
	
	// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
	this.DetectFlashVer = function(reqMajorVer, reqMinorVer, reqRevision){
		versionStr = this.GetSwfVer();
		if (versionStr == -1 ) {
			return false;
		} else if (versionStr != 0) {
			if(this.isIE && this.isWin && !this.isOpera) {
				// Given "WIN 2,0,0,11"
				tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
				tempString        = tempArray[1];			// "2,0,0,11"
				versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
			} else {
				versionArray      = versionStr.split(".");
			}
			var versionMajor      = versionArray[0];
			var versionMinor      = versionArray[1];
			var versionRevision   = versionArray[2];
	
				// is the major.revision >= requested major.revision AND the minor version >= requested minor
			if (versionMajor > parseFloat(reqMajorVer)) {
				return true;
			} else if (versionMajor == parseFloat(reqMajorVer)) {
				if (versionMinor > parseFloat(reqMinorVer))
					return true;
				else if (versionMinor == parseFloat(reqMinorVer)) {
					if (versionRevision >= parseFloat(reqRevision))
						return true;
				}
			}
			return false;
		}
	}
	
	this.AC_AddExtension = function(src, ext){
	  if (src.indexOf('?') != -1)
		return src.replace(/\?/, ext+'?'); 
	  else
		return src + ext;
	}
	
	this.AC_Generateobj = function(objAttrs, params, embedAttrs){ 
	  var str = '';
	  if (this.isIE && this.isWin && !this.isOpera)
	  {
		str += '<object ';
		for (var i in objAttrs)
		{
		  str += i + '="' + objAttrs[i] + '" ';
		}
		str += '>';
		for (var i in params)
		{
		  str += '<param name="' + i + '" value="' + params[i] + '" /> ';
		}
		str += '</object>';
	  }
	  else
	  {
		str += '<embed ';
		for (var i in embedAttrs)
		{
		  str += i + '="' + embedAttrs[i] + '" ';
		}
		str += '> </embed>';
	  }
	  document.write(str);
	}
	
	this.AC_FL_RunContent = function(){
		//var hasRightVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
		if(this.hasRightVersion){
			var ret = this.AC_GetArgs(arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000", "application/x-shockwave-flash");
			this.AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
			return true;
		}
		if(this.altContent!=''){
			document.write(this.altContent);
			return false;
		}
		return false;
	}
	
	this.AC_GetArgs = function(args, ext, srcParamName, classid, mimeType){
	  var ret = new Object();
	  ret.embedAttrs = new Object();
	  ret.params = new Object();
	  ret.objAttrs = new Object();
	  //Defaults
	  ret.objAttrs['codebase'] = 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0';
	  ret.embedAttrs['align'] = ret.params['align'] = 'left';
	  ret.embedAttrs['quality'] = ret.params['quality'] = 'high';
	  ret.embedAttrs['pluginspage'] = ret.params['pluginspage'] = 'http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash';
	  ret.embedAttrs['scale'] = ret.params['scale'] = 'noborder';
	  ret.embedAttrs['salign'] = ret.params['salign'] = 'tl';
	  ret.embedAttrs['wmode'] = ret.params['wmode'] = 'opaque';
	  
	  for (var i=0; i < args.length; i=i+2){
		var currArg = args[i].toLowerCase();    
	
		switch (currArg){	
		  case "classid":
			break;
		  case "pluginspage":
			ret.embedAttrs[args[i]] = args[i+1];
			break;
		  case "src":
		  case "movie":
			args[i+1] = this.AC_AddExtension(args[i+1], ext);
			ret.embedAttrs["src"] = args[i+1];
			ret.params[srcParamName] = args[i+1];
			break;
		  case "id":
			ret.objAttrs[args[i]] = args[i+1];
			ret.embedAttrs["id"] = args[i+1];
			break;
		  case "width":
			ret.objAttrs[args[i]] = args[i+1];
			ret.embedAttrs[args[i]] = args[i+1];
			break;
		  case "height":
			ret.objAttrs[args[i]] = args[i+1];
			ret.embedAttrs[args[i]] = args[i+1];
			break;
		  case "align":
			ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
			break;
		  case "tabindex":
			ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
			break;
		  default:
			ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
		}
	  }
	  ret.objAttrs["classid"] = classid;
	  if (mimeType) ret.embedAttrs["type"] = mimeType;
	  return ret;
	}
	this.hasRightVersion = this.DetectFlashVer(this.requiredMajorVersion, this.requiredMinorVersion, this.requiredRevision);
}
//End Embed Flash