// Flash Player Version Detection - Rev 1.6
// Detect Client Browser type
// Copyright(c) 2005-2006 Adobe Macromedia Software, LLC. All rights reserved.

var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

function ControlVersion() {
  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;}
  }

  tempArray = version.split(" ");      // ["WIN", "2,0,0,11"]
  tempString = tempArray[1];                       // "2,0,0,11"
  versionArray = tempString.split(",");      // ['2', '0', '0', '11']
  var versionMajor = versionArray[0];
  var versionMinor = versionArray[1];
  var versionRevision = versionArray[2];
  version = versionMajor+"."+versionMinor+"."+versionRevision;

  return version;
}

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer() {
  // 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;
      // alert("flashVer="+flashVer);
    }
  }
  // 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 ( isIE && isWin && !isOpera ) {flashVer = ControlVersion();}
  return flashVer;
}

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) {
  versionStr = GetSwfVer();
  if (versionStr == -1 ) {
    return false;
  } else if (versionStr != 0) {
    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;
  }
}

function init() {
  if (document.getElementById("mensaje_error_flash")) {
    if (DetectFlashVer(9,0,124)) {
      var texto = "";
    } else {
      var texto = "Necesita Adobe flash player versión 9.0.124 o superior para que funcione correctamente este video, su versión actual es la "+GetSwfVer()+", descarge la última versión de <a href=\"http://www.adobe.com/go/getflashplayer\" title=\"descarge la última versión de Adobe flash player\">Adobe flash player</a>.";
    }
    document.getElementById("mensaje_error_flash").innerHTML = texto;
  }
}

window.onload = init;