// v1.7
// Flash Player Version Detection
// Detect Client Browser type
// Copyright 2005-2007 Adobe Systems Incorporated.  All rights reserved.
// reformated and enhanced, 2008 Digipay AG

var is_ie      = (navigator.appVersion.indexOf("MSIE") != -1)              ? true : false;
var is_windows = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var is_opera   = (navigator.userAgent.indexOf("Opera") != -1)              ? true : false;

/**
 * set version information for various flash versions
 */
function ControlVersion()
{
  var version;
  var active_x_object;
  var exception;

  // 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
    active_x_object = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
    version         = active_x_object.GetVariable("$version");
  }
  catch (exception) {  }

  if (!version)
  {
    try
    {
      // version will be set for 6.X players only
      active_x_object = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");

      // installed player is some revision of 6.0
      // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
      // so we have to be careful.
      version                           = "WIN 6,0,21,0"; // default to the first public version
      active_x_object.AllowScriptAccess = "always";       // throws if AllowScripAccess does not exist (introduced in 6.0r47)
      version                           = active_x_object.GetVariable("$version"); // safe to call for 6.0r47 or greater
    }
    catch (exception) { }
  }

  if (!version)
  {
    try
    {
      // version will be set for 4.X or 5.X player
      active_x_object = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version         = active_x_object.GetVariable("$version");
    }
    catch (exception) { }
  }

  if (!version)
  {
    try
    {
      // version will be set for 3.X player
      active_x_object = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version         = "WIN 3,0,18,0";
    }
    catch (exception) { }
  }

  if (!version)
  {
    try
    {
      // version will be set for 2.X player
      active_x_object = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
      version         = "WIN 2,0,0,11";
    }
    catch (exception)
    {
      version = -1;
    }
  }

  return version;
}

/**
 * javascript helper required to detect flash player plugin version information
 */
function GetSwfVer(){
  // mozilla/opera version >= 3 check for flash plugin in plugin array
  var flash_version = -1;

  if (navigator.plugins != null && navigator.plugins.length > 0)
  {
    if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"])
    {
      var sw_version_2      = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
      var flash_description = navigator.plugins["Shockwave Flash" + sw_version_2].description;
      var descriptions      = flash_description.split(" ");
      var temp_version      = descriptions[2].split(".");
      var version_major     = temp_version[0];
      var version_minor     = temp_version[1];
      var version_revision  = descriptions[3];

      if (version_revision == "")
      {
        version_revision = descriptions[4];
      }

      if (version_revision[0] == "d")
      {
        version_revision = version_revision.substring(1);
      }
      else if (version_revision[0] == "r")
      {
        version_revision = version_revision.substring(1);
        if (version_revision.indexOf("d") > 0)
        {
          version_revision = version_revision.substring(0, version_revision.indexOf("d"));
        }
      }
      var flash_version = version_major + "." + version_minor + "." + version_revision;
    }
  }
  else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) // MSN/WebTV 2.6 supports Flash 4
  {
    flash_version = 4;
  }
  else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) // WebTV 2.5 supports Flash 3
  {
    flash_version = 3;
  }
  else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) // older WebTV supports Flash 2
  {
    flash_version = 2;
  }
  else if ( is_ie && is_windows && !is_opera )
  {
    flash_version = ControlVersion();
  }

  return flash_version;
}

/**
 * checks if requested flash version is available
 */
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
  versionStr = GetSwfVer();
  if (versionStr == -1 )
  {
    return false;
  }

  if (versionStr != 0)
  {
    if(is_ie && is_windows && !is_opera)
    {
      // 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 version_major    = versionArray[0];
    var version_minor    = versionArray[1];
    var version_revision = versionArray[2];

    // is the major.revision >= requested major.revision AND the minor version >= requested minor
    if (version_major > parseFloat(reqMajorVer))
    {
      return true;
    }

    if (version_major == parseFloat(reqMajorVer))
    {
      if (version_minor > parseFloat(reqMinorVer))
      {
        return true;
      }

      if (version_minor == parseFloat(reqMinorVer) && version_revision >= parseFloat(reqRevision))
      {
        return true;
      }
    }
    return false;
  }
}

function AC_AddExtension(src, ext)
{
  return (src.indexOf('?') != -1) ? src.replace(/\?/, ext+'?') : src + ext;
}

/**
 * generates html object/embed tag
 */
function AC_Generateobj(objAttrs, params, embedAttrs)
{
  var str = '';
  if (is_ie && is_windows && !is_opera)
 {
    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);
}

/**
 * creates argument list and generates html code
 */
function AC_FL_RunContent()
{
  var ret = AC_GetArgs(arguments,
                       ".swf",
                       "movie",
                       "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000",
                       "application/x-shockwave-flash");

  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}

/**
 * generates the argument list for AC_Generateobj()
 */
function AC_GetArgs(args, ext, srcParamName, classid, mimeType)
{
  var ret        = new Object();
  ret.embedAttrs = new Object();
  ret.params     = new Object();
  ret.objAttrs   = new Object();

  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]                = AC_AddExtension(args[i+1], ext);
        ret.embedAttrs["src"]    = args[i+1];
        ret.params[srcParamName] = args[i+1];
        break;

      case "onafterupdate":
      case "onbeforeupdate":
      case "onblur":
      case "oncellchange":
      case "onclick":
      case "ondblclick":
      case "ondrag":
      case "ondragend":
      case "ondragenter":
      case "ondragleave":
      case "ondragover":
      case "ondrop":
      case "onfinish":
      case "onfocus":
      case "onhelp":
      case "onmousedown":
      case "onmouseup":
      case "onmouseover":
      case "onmousemove":
      case "onmouseout":
      case "onkeypress":
      case "onkeydown":
      case "onkeyup":
      case "onload":
      case "onlosecapture":
      case "onpropertychange":
      case "onreadystatechange":
      case "onrowsdelete":
      case "onrowenter":
      case "onrowexit":
      case "onrowsinserted":
      case "onstart":
      case "onscroll":
      case "onbeforeeditfocus":
      case "onactivate":
      case "onbeforedeactivate":
      case "ondeactivate":
      case "type":
      case "codebase":
      case "id":
        ret.objAttrs[args[i]] = args[i+1];
        break;

      case "width":
      case "height":
      case "align":
      case "vspace":
      case "hspace":
      case "class":
      case "title":
      case "accesskey":
      case "name":
      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;
}

/**
 * simulate php empty() function
 */
function empty(mixed_var)
{
  return (mixed_var === ""    ||
          mixed_var === 0     ||
          mixed_var === "0"   ||
          mixed_var === null  ||
          mixed_var === false ||
          (mixed_var instanceof Array && mixed_var.length === 0 ));
}

/**
 * this function gets called by the example mainFlashApp.swf
 */
function setFlashChecksum(check_sum)
{
  var field   = document.getElementById('flash_value');
  field.value = (!empty(check_sum)) ? check_sum : ' no value received';

  alert('example value received from flash: \n' + check_sum);
}