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;
    }

}

/** 
 ** Inlogfunctie
 **/

login = function (user_name, user_password, login, logout)
{
	
	if (login == '1')
	{
		$('p_login').hide();
		$('form_login').show();
		$('input_user_name').activate();
	} else
	{
		
		new Ajax.Updater
		(
			'div_login', 
			'/login.php', 
			{
				onComplete:function(request){}, 
				
				parameters:
				{
		  		user_name: user_name, 
		  		user_password: user_password, 
		  		logout: logout
				}, 
				evalScripts:true, 
				asynchronous:true
			}
		);
	}
}

/** 
 ** Favorieten
 **/

delete_favorite = function (id)
{
	
	$('favorite_'+id).remove();
	
	new Ajax.Updater
	(
		'inhoud', 
		'/favorite.php', 
		{
			onComplete:function(request){}, 
			
			parameters:
			{
				ul_favorite: Sortable.serialize('ul_favorite'), 
				delete_id: id
			}, 
			evalScripts:true, 
			asynchronous:true
		}
	);
}

add_favorite = function (id, artist, title, runtime, path)
{
	
	$('ul_favorite_pre').remove();
	document.getElementById('favorite_pre').id = 'favorite_'+id;
	$('favorite_'+id).show();
	
	new Ajax.Updater
	(
		'inhoud', 
		'/favorite.php', 
		{
			onComplete:function(request){}, 
			
			parameters:
			{
				ul_favorite: Sortable.serialize('ul_favorite'), 
				clip_id: id,
				clip_artist: artist,
				clip_title: title, 
				clip_runtime: runtime, 
				clip_path: path
			}, 
			evalScripts:true, 
			asynchronous:true
		}
	);
}

/** 
 ** Zoekfunctie
 **/

search = function ()
{
	
	/**
	 ** Het zoekformulier is gesubmit, 
	 ** doorsturen naar zoek url met ingevulde keyword
	 **/
	
	location.href = '/zoeken.php?search_keyword=' + $F('input_keyword');
}

extern_search = function (search_keyword)
{
	
	new Ajax.Updater
	(
		'div_extern_search', 
		'/zoeken_extern.php', 
		{
			onComplete:function(request){ $('div_extern_search_loader').hide(); }, 
			
			parameters:
			{
	  		search_keyword: search_keyword
			}, 
			evalScripts:true, 
			asynchronous:true
		}
	);
}

/** 
 ** Relevant
 **/

related = function ()
{
	
	$('div_related').show();
	$('div_comments').hide();
}

/** 
 ** Verander clip
 **/

change_clip = function (clip_title,clip_url)
{
	
//	alert(clip_url)
	$('h_clip_title').innerHTML = clip_title;
	$('iframe_clip').src = 'http://clipjes.nl/bodycode.php?type=1&url='+Base64.encode(clip_url);
//	$('div_comments').hide();
}

/** 
 ** Reacties
 **/

comments = function ()
{
	
	$('div_comments').show();
	$('div_related').hide();
	
		new Ajax.Updater
		(
			'div_comments', 
			'/comments.php', 
			{
				onComplete:function(request){}, 
				
				parameters:
				{
				}, 
				evalScripts:true, 
				asynchronous:true
			}
		);
}

/** 
 ** Eventlisteners aanmaken
 **/

Event.observe
(
	window, 'load', function() 
	{
		
		/** 
		 ** Start login 
		 **/
		
		login('','','','');
		
		/**
		 ** Deze eventlisteners worden pas uitgevoerd 
		 ** zodra de pagina is geladen
		 **/
		
		try 
		{ 
			Event.observe('a_related', 'click', related); 
		} 
		catch (error) 
		{
			
		}
		
		try 
		{ 
			Event.observe('a_comments', 'click', comments); 
		} 
		catch (error) 
		{
			
		}
	}
);