function startExternPlayer() {
   initVariablesByCookie();
   startExternPlayerWithFormat(format);
}

function startExternPlayerWithFormat(choosenFormat) {
   parent.opener.location.href = externalPlayerLinksArray[choosenFormat];
   parent.self.close();
}

function showPlayerOrChooserByCookie() {
 initVariablesByCookie();
 if (autostart == "true" && format != "") {
    if (externalWindow) {
      showChooser();
    } else {
       showPlayer(format);
    }
 } else {
    showChooser();
 } 
}

function initVariablesByCookie() {    
   var selected = getCookie('selectedformat');
   if (typeof format == 'undefined') {
     format = "";
   }
   if (typeof autostart == 'undefined') {
     autostart = "";
   }
   if (typeof externalWindow == 'undefined') {
     externalWindow = false;
   }
   if(selected!=null && selected!='') {  
     var cookieValue =  getBase64().decode(selected);
  
     var array = cookieValue.split(";");     
     if (array.length >= 1 && array[0].split("=")[1] == "p") {
        externalWindow = true;
        setCheckedValue(document.mediaplayer.winsel, array[0].split("=")[1]);
     }     
     if (array.length >= 2) {
        format = array[1].split("=")[1];
        setCheckedValue(document.mediaplayer.formsel, format);
     }     
     if (array.length >= 3) {
        autostart = array[2].split("=")[1];
     }
   }
}

function showPlayer(format) {
   var playerLink = playerLinksArray[format];   
   if (playerLink == "") {
      playerLink = playerLinksArray[0];
   }    
   jQuery("#playerdiv").load(playerLink, {method:"get"});
   //new Ajax.Updater("playerdiv",playerLink, { evalScripts:true });
   jQuery("#player").show();
   jQuery("#playerclose").show();
   jQuery("#playerchooser").hide();
   jQuery("#playersettings").show();
   jQuery("#externalplayer").show();
   
}

function showChooser() {
   jQuery("#player").hide();
   // loeschen des player htmls, damit dieser im IE nicht abgespielt wird.
   if (jQuery("#playerdiv") != null) {
      jQuery("#playerdiv").html("");
   }
   jQuery("#playerclose").show();
   jQuery("#playerchooser").show();
   jQuery("#playersettings").hide();
   jQuery("#externalplayer").hide();
}

function updatePlayerInfo(url) {
  jQuery.PeriodicalUpdater({
      url : url,
      multiplier: 1,
      method: 'get',
      minTimeout: 10000
  },
  function(data){
      jQuery('#playerinfo').html(data);
  });

}

// set the radio button with the given value as being checked
// do nothing if there are no radio buttons
// if the given value does not exist, all the radio buttons
// are reset to unchecked
function setCheckedValue(radioObj, newValue) {
	if(!radioObj)
		return;
	var radioLength = radioObj.length;
	if(radioLength == undefined) {
		radioObj.checked = (radioObj.value == newValue.toString());
		return;
	}
	for(var i = 0; i < radioLength; i++) {
      radioObj[i].checked = (radioObj[i].value == newValue.toString());
	}
}

/*
 * The choose form is submitted
 */
function submitChooserForm() {
   var winsel = radioValue(document.mediaplayer.winsel);
   var formsel = radioValue(document.mediaplayer.formsel);
   var autostart = document.mediaplayer.autostart.checked;
   var value = 'winsel=' + winsel + ';' + 'formsel=' + formsel + '';

   if (autostart) {
     value += ';autostart=true';
   } else {
     value += ';autostart=false';
   }

   set_cookie('selectedformat',getBase64().encode(value),'5','/');
   if (winsel == "p") {
      startExternPlayerWithFormat(formsel);
   } else {
      showPlayer(formsel);
   }
}

function getBase64() {
   if (typeof base64 == 'undefined' || base64 == null) {
      var base64 = {
      // private property
      _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

      // public method for encoding
      encode : function (input) {
         var output = "";
         var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
         var i = 0;

         input = base64._utf8_encode(input);

         while (i < input.length) {

            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);

            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;

            if (isNaN(chr2)) {
               enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
               enc4 = 64;
            }

            output = output +
            this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
            this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

         }

         return output;
      },

      // public method for decoding
      decode : function (input) {
         var output = "";
         var chr1, chr2, chr3;
         var enc1, enc2, enc3, enc4;
         var i = 0;

         input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

         while (i < input.length) {

            enc1 = this._keyStr.indexOf(input.charAt(i++));
            enc2 = this._keyStr.indexOf(input.charAt(i++));
            enc3 = this._keyStr.indexOf(input.charAt(i++));
            enc4 = this._keyStr.indexOf(input.charAt(i++));

            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;

            output = output + String.fromCharCode(chr1);

            if (enc3 != 64) {
               output = output + String.fromCharCode(chr2);
            }
            if (enc4 != 64) {
               output = output + String.fromCharCode(chr3);
            }

         }

         output = base64._utf8_decode(output);

         return output;

      },

      // private method for UTF-8 encoding
      _utf8_encode : function (string) {
         string = string.replace(/\r\n/g,"\n");
         var utftext = "";

         for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
               utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
               utftext += String.fromCharCode((c >> 6) | 192);
               utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
               utftext += String.fromCharCode((c >> 12) | 224);
               utftext += String.fromCharCode(((c >> 6) & 63) | 128);
               utftext += String.fromCharCode((c & 63) | 128);
            }

         }

         return utftext;
      },

      // private method for UTF-8 decoding
      _utf8_decode : function (utftext) {
         var string = "";
         var i = 0;
         var c = c1 = c2 = 0;

         while ( i < utftext.length ) {

            c = utftext.charCodeAt(i);

            if (c < 128) {
               string += String.fromCharCode(c);
               i++;
            }
            else if((c > 191) && (c < 224)) {
               c2 = utftext.charCodeAt(i+1);
               string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
               i += 2;
            }
            else {
               c2 = utftext.charCodeAt(i+1);
               c3 = utftext.charCodeAt(i+2);
               string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
               i += 3;
            }

         }

         return string;
      }
   }
   return base64;
  }
}


function set_cookie (name, value, expiredays, path) {
  var exdate=new Date()
  exdate.setDate(exdate.getDate()+expiredays)
  var cookie_string = name + "=" + escape ( value );
  if (expiredays)
  	cookie_string += "; expires="+exdate.toGMTString();
  if ( path )
        cookie_string += "; path=" + escape ( path );
  document.cookie = cookie_string;
}

function getCookie(name) {
    var cookie = document.cookie;
    var prefix = name + "=";
    var begin = cookie.indexOf("; " + prefix);


    if (begin == -1) {
        begin = cookie.indexOf(prefix);
        if (begin != 0)
            return null;
    }
    else {
        begin += 2;
    }
    var end = cookie.indexOf(";", begin);
    if (end == -1) {
        end = cookie.length;
    }
    return unescape(cookie.substring(begin + prefix.length, end));
}

function radioValue(rObj) {
    // bei mehreren Radiobuttons
    if (typeof rObj.length == "undefined") {    
       // bei nur einem Radiobutton, interessiert es nicht ob dieser gewaehlt ist. 
       return rObj.value;
    } else {
       for (var i=0; i<rObj.length; i++) {
         if (rObj[i].checked) {
           return rObj[i].value;
         }
      }
    }
    return "";
}