function Browser(){
  this.iE = navigator.appName.toLowerCase().indexOf('microsoft') != -1 ? 1 : 0;
  this.mac =  navigator.userAgent.toLowerCase().indexOf('mac') != -1 ? 1 : 0;
  this.win = navigator.userAgent.toLowerCase().indexOf('windows') != -1 ? 1 : 0;
  this.safari =  navigator.userAgent.toLowerCase().indexOf('safari') != -1 ? 1 : 0;
  this.opera =  navigator.userAgent.toLowerCase().indexOf('opera') != -1 ? 1 : 0;    
  this.mozilla = navigator.appName.toLowerCase().indexOf('netscape') != -1 && !this.safari ? 1 : 0;
  this.winMozilla = this.mozilla && this.win ? 1 : 0;
  this.winIE = this.iE && this.win && !this.opera ? 1 : 0;
  this.macIE = this.iE && this.mac ? 1 : 0;
}
var browser = new Browser();

// framebuster
if (window!= top)top.location.href=location.href;

// getElementById
function getEl(el){
  return document.getElementById(el);
};


// addStyle
function addStyle(selector,properties){
  if (document.styleSheets) {
    var s = document.getElementsByTagName('STYLE');
    if (s.length == 0){
      var sheet = document.createElement('style');
      sheet.setAttribute('type','text/css');
      document.getElementsByTagName('HEAD')[0].appendChild(sheet);}
    if (browser.winIE){
      var lastSheet = document.styleSheets[document.styleSheets.length - 1];
      lastSheet.addRule(selector, properties);}
    else {var lastSheet = s[0];
      lastSheet.appendChild(document.createTextNode(selector + ' { ' + properties + ' }'));}
  	}
};

/* 
* media player , mdi, aug 2006 
* adapted for 2K, mdi, okt 2007
* TODO: size doesn't work well, strange behaviour in FF en IE
*/ 
     
// check if the proper media player version is installed
function hasWMPPlugin(){
  // windows ie
	if (window.ActiveXObject){
		try{
			var obj = new ActiveXObject("WMPlayer.OCX");
      obj = null;
      return 1;
		}
		catch(e){
			return 0;
		}
	}
  //other
	else if(navigator.plugins.length){
  	for (var i = 0; i < navigator.plugins.length; i++){
      if (navigator.plugins[i].name.toLowerCase().indexOf('windows media') != -1){
        return 1;
      }
  	} 	
  }
	return 0;
};

//embedded media Class
var windowsMediaPlayers = [];
function WindowsMediaPlayer(oArg){

  // instance variables
  this.id = oArg.id;
  this.uri = oArg.uri;
  this.width = oArg.width ? oArg.width : 400;
  this.height = oArg.height ? oArg.height : 333;
  this.mimeType = 'video/x-ms-asf-plugin';
  this.hasWMPPlugin = hasWMPPlugin();
  //type="video/x-ms-asf-plugin" 
  this.type = 'application/x-oleobject';
  windowsMediaPlayers[this.id] = this;
  
  // functions
  
  //hide and show content
  if (this.hasWMPPlugin){
    addStyle('#' + this.id + '-container .alternate-content','display:none !important;');
  }
  
  // create (window onload)
  this.create = function(){
  
    // embed the player
    if (!this.hasWMPPlugin || !getEl(this.id + '-container')){
      return;
    }
    this.embedPlayer();
           
  };
  
  //do all the checks and implement the player
  this.embedPlayer = function(){
    var container = getEl(this.id + '-container');
    var w = '';
    if (browser.mac){
      w += '<embed scale="showall" width="' + this.width + '" height="' + this.height + '" type="' + this.mimeType +'" src="' + this.uri +'" id="' + this.id +'" autostart="1"></embed>';
    }
    else {
      var wData = ' data="' + this.uri +'"';
      var wClassid = '';
      if (browser.winIE){
        wData = '';
        wClassid = ' classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"'; // 7 and up
        //wClassid = ' classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95"'; // < 7
      }
      w += '<object style="display:block;width:' + this.width + 'px;height:' + this.height + 'px;" type="' + this.mimeType +'" id="' + this.id +'"' + wData + wClassid + '>';
      w += '<param name="URL" value="' + this.uri + '" />';
      w += '<param name="Showcontrols" value="True" />';
      w += '<param name="autoStart" value="True" />';
      w += '<param name="autoSize" value="True" />';
      w += '<param name="uiMode" value="full" />';
      w += '<param name="windowlessVideo" value="true" />';
      w += '<param name="DisplayMode" value="0" />';
      w += '<param name="DisplaySize" value="4" />';
      w += '<param name="AllowChangeDisplaySize" value="True" />';
      w += '<param name="fullScreen" value="False" />';
      w += '</object>';
    }
    container.innerHTML = w;
  };
  
  //play fullscreen
  this.playFullScreen = function(){
    var player = getEl(this.id);
    if (player.playState==3){ // gives error if not playing, 3 = playing
      player.setAttribute('fullScreen', 'true');
    }
    else {
      alert('Het video-bestand kan alleen op het volledige scherm \nworden getoond indien deze afspeelt.')
    }
  };
  
}; 

// create all the media objects
function createWindowsMediaPlayers(){
  for (var i in windowsMediaPlayers){
    windowsMediaPlayers[i].create();
  }
};

// window.onload
if (window.addEventListener){
  window.addEventListener('load', createWindowsMediaPlayers,false);
}
else if (window.attachEvent){
  window.attachEvent("onload", createWindowsMediaPlayers);
}

/* 
* end media player 
*/ 



/* init */



if (browser.winMozilla){
  getEl('countdown-container').style.marginLeft = '-30px';
  var cDWidth = 480;
  var cDHeight = 315;
}
else {
  var cDWidth = 440;
  var cDHeight = 315;
}
var countdown = new WindowsMediaPlayer({
  uri: "media/boek7_aftelfilmpjes/potter_nog_0_dagen.wmv",
  id:"countdown",
  width:cDWidth,
  height:cDHeight
});