var dont_select_tree_node = false;
var last_selected_album_from_artist = false;
var from_cellclick = false;
var youtube_window = false;
var cooliris_window = false;
var user_editor = "";
var setup_editor = "";
var player_window = false;
var cooliris_dont_reload = false;
var queryStore = new Array();
var history_position = 0;

function open_cooliris()
{
	// Some sample html
	if(!cooliris_window)
	{
		var feed = escape("album_feed.php?query=" + album_obj.getStore().baseParams.query + "&fields=" + album_obj.getStore().baseParams.fields + "&sort=" + album_obj.getStore().sortInfo.field + "&sort_dir=" + album_obj.getStore().sortInfo.direction);

		var html = [
			'<div style="text-align: center"><object id="o" ',
				'classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"', 
				'width="630"', 
				'height="370">',
					'<param name="movie" value="http://apps.cooliris.com/embed/cooliris.swf" />',
					'<param name="allowFullScreen" value="true" />',
					'<param name="allowScriptAccess" value="always" />',
					'<param name="flashvars" value="feed=' + feed + '&style=light&showSearch=false&showEmbed=false&showChrome=false&numRows=3&icons=img&showReflections=false" />',
					'<embed type="application/x-shockwave-flash"',
						'src="http://apps.cooliris.com/embed/cooliris.swf"',
						'flashvars="feed=' + feed + '&style=light&showSearch=false&showEmbed=false&showChrome=false&numRows=3&icons=img&showReflections=false"',
						'width="630"', 
						'height="370"', 
						'allowFullScreen="true"',
						'allowScriptAccess="always">',
					'</embed>',
			'</object></div>'
		];
		
		cooliris_window = new Ext.Window({
				layout: 'fit',
				title: "Albums",
				id: 'cooliris_windowID',
				width: 655,
				bodyStyle: 'padding: 5px;',
				height: 420,
				stateful: false,
				resizeable: false,
				closeAction:'close',
				autoScroll: true,
				html: html.join(''),
				plain: false,
				listeners:
				{
					close:function(p)
						{
							cooliris_window = "";
						}
				}			
		});	
		cooliris_window.show();
	}
}

function cut_array_to_n_elements(data,n)
{
	var result = new Array();
	
	for(i=0;i<data.length && i<n;i++)
	{
		result[i] = data[i];
	}
	return result;
}

function filter_setting(from,value)
{
	history_position++;
	queryStore = cut_array_to_n_elements(queryStore,history_position);
	
	var store = Ext.getCmp("mp3_list").getStore();
	
	delete(store.baseParams["albumID"]);
	delete(store.baseParams["artistID"]);
	delete(store.baseParams["letter_filter"]);
	delete(store.baseParams["query"]);
	delete(store.baseParams["fields"]);
	delete(store.baseParams["full_text_search"]);
	delete(store.baseParams["full_path"]);
	
	if (store.lastOptions && store.lastOptions.params) {
		delete(store.lastOptions.params["albumID"]);
		delete(store.lastOptions.params["artistID"]);
		delete(store.lastOptions.params["letter_filter"]);
		delete(store.lastOptions.params["query"]);
		delete(store.lastOptions.params["fields"]);
		delete(store.lastOptions.params["full_text_search"]);
		delete(store.lastOptions.params["full_path"]);
	}
	
	if(store.lastOptions && store.lastOptions.params)
		store.lastOptions.params[store.paramNames.start] = 0;

	if(from=="album")
	{
		//cm = Ext.getCmp("mp3_list").getColumnModel();
		
		if(value) 
		{
			store.baseParams.albumID = value;
			/*if(cooliris_window)
				cooliris.embed.selectItemByGUID(value);*/
		}
		else store.baseParams.albumID = 0;
	}
	else store.baseParams.albumID = 0;
	
	if(from=="artist")
	{
		if(value) store.baseParams.artistID = value;
		else store.baseParams.artistID = 0;
	}
	else store.baseParams.artistID = 0;
	
	if(from=="letter")
	{
		store.baseParams.letter_filter = value;
		store.baseParams.field_filter = Ext.getCmp('field_filter').getValue();
	}
	else
	{
		var letter = store.baseParams.letter_filter;
		if(letter)
			Ext.getCmp('button_filter[' + letter + ']').toggle(false);
		Ext.getCmp('button_filter[]').toggle(true);
		store.baseParams.letter_filter = '';	
		mp3_list_obj.last_filter = '';
	}

	if(from=="tree")
	{
		if(value) store.baseParams.full_path = value;
		else store.baseParams.full_path = "";		
	}
	else
	{
		store.baseParams.full_path = '';
		dont_select_tree_node = true;
		Ext.getCmp("dir_treeID").getRootNode().select();
		//Ext.getCmp("dir_treeID").getSelectionModel().clearSelections();
	}		
		
	if(from!="quick_search")
	{
		Ext.getCmp("main_search_fieldID").setValue('');
	}	
	
	if(from!="fulltext_search")
	{
		Ext.getCmp("main_search_full_text_fieldID").setValue('');
	}	

	if(from!="quick_search" && from!="fulltext_search")
	{
		store.baseParams.fields = "";
		store.baseParams.full_text_search = "";
		store.baseParams.query = "";
	
		store.reload();
	}	
}

function load_album(ID,obj)
	{
		if (last_selected_album_from_artist)
			last_selected_album_from_artist.className = 'album_from_artist_entry';
		
		obj.className = "album_from_artist_entry_selected";
		last_selected_album_from_artist = obj; 
		
		filter_setting("album",ID);
	}

function rand( min, max ) {
    var argc = arguments.length;
    if (argc == 0) {
        min = 0;
        max = 2147483647;
    } else if (argc == 1) {
        throw new Error('Warning: rand() expects exactly 2 parameters, 1 given');
    }
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function album_selection_mouse_in(obj)
{
	if(obj.className!="album_from_artist_entry_selected") 
		obj.className='album_from_artist_entry_marked';
}

function album_selection_mouse_out(obj)
{
	if(obj.className!="album_from_artist_entry_selected") 
		obj.className='album_from_artist_entry';
}

function htmlspecialchars_decode( string, quote_style ) {
 
    var histogram = {}, symbol = '', tmp_str = '', entity = '';
    tmp_str = string.toString();
    
    if (false === (histogram = get_html_translation_table('HTML_ENTITIES', quote_style))) {
        return false;
    }
 
    // &amp; must be the last character when decoding!
    delete(histogram['&']);
    histogram['&'] = '&amp;';
 
    for (symbol in histogram) {
        entity = histogram[symbol];
        tmp_str = tmp_str.split(entity).join(symbol);
    }
    
    return tmp_str;
}

function get_html_translation_table(table, quote_style) {
    
    var entities = {}, histogram = {}, decimal = 0, symbol = '';
    var constMappingTable = {}, constMappingQuoteStyle = {};
    var useTable = {}, useQuoteStyle = {};
    
    useTable      = (table ? table.toUpperCase() : 'HTML_SPECIALCHARS');
    useQuoteStyle = (quote_style ? quote_style.toUpperCase() : 'ENT_COMPAT');
    
    // Translate arguments
    constMappingTable[0]      = 'HTML_SPECIALCHARS';
    constMappingTable[1]      = 'HTML_ENTITIES';
    constMappingQuoteStyle[0] = 'ENT_NOQUOTES';
    constMappingQuoteStyle[2] = 'ENT_COMPAT';
    constMappingQuoteStyle[3] = 'ENT_QUOTES';
    
    // Map numbers to strings for compatibilty with PHP constants
    if (!isNaN(useTable)) {
        useTable = constMappingTable[useTable];
    }
    if (!isNaN(useQuoteStyle)) {
        useQuoteStyle = constMappingQuoteStyle[useQuoteStyle];
    }
 
    if (useTable == 'HTML_SPECIALCHARS') {
        // ascii decimals for better compatibility
        entities['38'] = '&amp;';
        if (useQuoteStyle != 'ENT_NOQUOTES') {
            entities['34'] = '&quot;';
        }
        if (useQuoteStyle == 'ENT_QUOTES') {
            entities['39'] = '&#039;';
        }
        entities['60'] = '&lt;';
        entities['62'] = '&gt;';
    } else if (useTable == 'HTML_ENTITIES') {
        // ascii decimals for better compatibility
      entities['38']  = '&amp;';
        if (useQuoteStyle != 'ENT_NOQUOTES') {
            entities['34'] = '&quot;';
        }
        if (useQuoteStyle == 'ENT_QUOTES') {
            entities['39'] = '&#039;';
        }
      entities['60']  = '&lt;';
      entities['62']  = '&gt;';
      entities['160'] = '&nbsp;';
      entities['161'] = '&iexcl;';
      entities['162'] = '&cent;';
      entities['163'] = '&pound;';
      entities['164'] = '&curren;';
      entities['165'] = '&yen;';
      entities['166'] = '&brvbar;';
      entities['167'] = '&sect;';
      entities['168'] = '&uml;';
      entities['169'] = '&copy;';
      entities['170'] = '&ordf;';
      entities['171'] = '&laquo;';
      entities['172'] = '&not;';
      entities['173'] = '&shy;';
      entities['174'] = '&reg;';
      entities['175'] = '&macr;';
      entities['176'] = '&deg;';
      entities['177'] = '&plusmn;';
      entities['178'] = '&sup2;';
      entities['179'] = '&sup3;';
      entities['180'] = '&acute;';
      entities['181'] = '&micro;';
      entities['182'] = '&para;';
      entities['183'] = '&middot;';
      entities['184'] = '&cedil;';
      entities['185'] = '&sup1;';
      entities['186'] = '&ordm;';
      entities['187'] = '&raquo;';
      entities['188'] = '&frac14;';
      entities['189'] = '&frac12;';
      entities['190'] = '&frac34;';
      entities['191'] = '&iquest;';
      entities['192'] = '&Agrave;';
      entities['193'] = '&Aacute;';
      entities['194'] = '&Acirc;';
      entities['195'] = '&Atilde;';
      entities['196'] = '&Auml;';
      entities['197'] = '&Aring;';
      entities['198'] = '&AElig;';
      entities['199'] = '&Ccedil;';
      entities['200'] = '&Egrave;';
      entities['201'] = '&Eacute;';
      entities['202'] = '&Ecirc;';
      entities['203'] = '&Euml;';
      entities['204'] = '&Igrave;';
      entities['205'] = '&Iacute;';
      entities['206'] = '&Icirc;';
      entities['207'] = '&Iuml;';
      entities['208'] = '&ETH;';
      entities['209'] = '&Ntilde;';
      entities['210'] = '&Ograve;';
      entities['211'] = '&Oacute;';
      entities['212'] = '&Ocirc;';
      entities['213'] = '&Otilde;';
      entities['214'] = '&Ouml;';
      entities['215'] = '&times;';
      entities['216'] = '&Oslash;';
      entities['217'] = '&Ugrave;';
      entities['218'] = '&Uacute;';
      entities['219'] = '&Ucirc;';
      entities['220'] = '&Uuml;';
      entities['221'] = '&Yacute;';
      entities['222'] = '&THORN;';
      entities['223'] = '&szlig;';
      entities['224'] = '&agrave;';
      entities['225'] = '&aacute;';
      entities['226'] = '&acirc;';
      entities['227'] = '&atilde;';
      entities['228'] = '&auml;';
      entities['229'] = '&aring;';
      entities['230'] = '&aelig;';
      entities['231'] = '&ccedil;';
      entities['232'] = '&egrave;';
      entities['233'] = '&eacute;';
      entities['234'] = '&ecirc;';
      entities['235'] = '&euml;';
      entities['236'] = '&igrave;';
      entities['237'] = '&iacute;';
      entities['238'] = '&icirc;';
      entities['239'] = '&iuml;';
      entities['240'] = '&eth;';
      entities['241'] = '&ntilde;';
      entities['242'] = '&ograve;';
      entities['243'] = '&oacute;';
      entities['244'] = '&ocirc;';
      entities['245'] = '&otilde;';
      entities['246'] = '&ouml;';
      entities['247'] = '&divide;';
      entities['248'] = '&oslash;';
      entities['249'] = '&ugrave;';
      entities['250'] = '&uacute;';
      entities['251'] = '&ucirc;';
      entities['252'] = '&uuml;';
      entities['253'] = '&yacute;';
      entities['254'] = '&thorn;';
      entities['255'] = '&yuml;';
    } else {
        throw Error("Table: "+useTable+' not supported');
        return false;
    }
    
    // ascii decimals to real symbols
    for (decimal in entities) {
        symbol = String.fromCharCode(decimal);
        histogram[symbol] = entities[decimal];
    }
    
    return histogram;
}

function open_youtube_url(url)
{
	Ext.getCmp("youtube_windowID").load({
        url: "youtube_url.php",
				callback: function(el,success,response,options) {
					youtube_cache_page2 = response.responseText;
					Ext.getCmp("youtube_back").enable();
					Ext.getCmp("youtube_forward").disable();
				},
        params: "url=" + url,
        text: ""
	});
}

function open_lyrics_url(hid)
{
	Ext.getCmp("lyrics_windowID").load({
        url: "lyrics.php",
        params: "hid=" + hid,
        text: ""
	});
}

function renderDuration(value) {
		var minuten = Math.floor(value / 60);
		var sekunden = value - minuten*60;
		if(sekunden<10) sekunden = "0" + sekunden;
		return String.format( 
		'{0}:{1}',
		minuten,sekunden);
}

function number_format(value,decimals, dec_point, thousands_sep) {
	decimals = Math.abs(decimals) + 1 ? decimals : 2;
	dec_point = dec_point || '.';
	thousands_sep = thousands_sep || ',';
	var matches = /(-)?(\d+)(\.\d+)?/.exec((isNaN(value) ? 0 : value) + ''); // returns matches[1] as sign, matches[2] as numbers and matches[3] as decimals
	var remainder = matches[2].length > 3 ? matches[2].length % 3 : 0;
	return (matches[1] ? matches[1] : '') + (remainder ? matches[2].substr(0, remainder) + thousands_sep : '') + matches[2].substr(remainder).replace(/(\d{3})(?=\d)/g, "$1" + thousands_sep) + (decimals ? dec_point + (+matches[3] || 0).toFixed(decimals).substr(2) : '');
}	

function expand_nodes(step,path_array,node)
{
	if(step<=(path_array.length - 1))
	{
		if(path_array[step]=="")
			var new_node = node.findChild( "my_root", 1 );
		else
			var new_node = node.findChild( "name", path_array[step] );
		if(new_node)
		{
			new_node.expand(false,true,function() {
						step = step + 1; 
						if(step<=(path_array.length - 1))
							expand_nodes(step,path_array,new_node);
						else
						{
							dont_select_tree_node = true;
							new_node.select();
						}
					}
			);
		}
	}
}

function open_path(path)
{
	var store = Ext.getCmp("mp3_list").getStore();
	if(store.lastOptions && store.lastOptions.params)
		store.lastOptions.params[store.paramNames.start] = 0;
	if(path) store.baseParams.full_path = path;
	else store.baseParams.full_path = "";

	store.baseParams.albumID = 0;
	store.baseParams.artistID = 0;
	
	var letter = store.baseParams.letter_filter;
	if(letter)
		Ext.getCmp('button_filter[' + letter + ']').toggle(false);
	Ext.getCmp('button_filter[]').toggle(true);
	store.baseParams.letter_filter = '';	
	mp3_list_obj.last_filter = '';

	Ext.getCmp("main_search_fieldID").setValue('');
	Ext.getCmp("main_search_full_text_fieldID").setValue('');
	store.baseParams.fields = "";
	store.baseParams.query = "";
	store.baseParams.full_text_search = "";

	store.reload({
		callback: function()
		{
			path = "/" + path;
			var path_array = path.split("/");
			var current_node = Ext.getCmp("dir_treeID").getRootNode();
			expand_nodes(0,path_array,current_node);
		}
	});
}

function addslashes( str ) {
    return (str+'').replace(/([\\"'])/g, "\\$1").replace(/\0/g, "\\0");
}

function extras_menu(data,from)
{
	return new Ext.menu.Menu({
				items: [
			{
			myid: 'youtube-entry',
			iconCls:'icon-youtube',
			text:'Videos on youtube'													
			}
			,
			{
			myid: 'lyrics-entry',
			iconCls:'icon-lyrics',
			text:'Lyrics'													
			}
			,new Ext.menu.Separator(),
			{
			myid: 'download-entry',
			iconCls:'icon-download',
			text:'Download'													
			}
			,
			{
			myid: 'edit-entry',
			iconCls:'icon-cd-edit',
			text:'Edit'													
			}
			],
		listeners: {
				itemclick: function(item) {
						var node = item.parentMenu.contextNode;
						switch (item.myid) {
								case 'youtube-entry':
									var title = data.title;
									if(data.artist)
										title = data.artist + " - " + title;
									if(youtube_window)
										youtube_window.close();
									youtube_window = new Ext.Window({
											layout: 'fit',
											tbar: [
											{ iconCls: 'icon-left', id: 'youtube_back', disabled: 'true', text: 'Back', handler: function(){
												Ext.getCmp("youtube_forward").enable();
												Ext.getCmp("youtube_windowID").body.update(youtube_cache_page1);
												Ext.getCmp("youtube_back").disable();
												}},
											{ iconCls: 'icon-right', id: 'youtube_forward', disabled: 'true', text: 'Forward', handler: function(){
												Ext.getCmp("youtube_back").enable();
												Ext.getCmp("youtube_windowID").body.update(youtube_cache_page2);
												Ext.getCmp("youtube_forward").disable();									
												}}],
											id: 'youtube_windowID',
											title: title,
											width: 510,
											height: 454,
											bodyStyle: 'padding: 5px;',
											resizable: false,
											closeAction:'close',
											autoScroll: true,
											autoLoad: {
												url: 'youtube_list.php', 
												params: 'title=' + encodeURIComponent(data.title) + "&artist=" + encodeURIComponent(data.artist),
												callback: function(el,success,response,options) {
													youtube_cache_page1 = response.responseText;
													}
											},
											plain: false
										});
										youtube_window.show();
									break;												
								case 'lyrics-entry':
									var title = data.title;
									if(data.artist)
										title = data.artist + " - " + title;
									win = new Ext.Window({
											layout: 'fit',
											title: title,
											id: 'lyrics_windowID',
											width: 500,
											bodyStyle: 'padding: 5px;',
											height: 500,
											closeAction:'close',
											autoScroll: true,
											autoLoad: {url: 'lyrics.php', params: 'action=getSong&title=' + encodeURIComponent(data.title) + "&artist=" + encodeURIComponent(data.artist)},
											plain: false
									});
									win.show();																			
									break;												
								case 'download-entry':
									if(DEMO_MODE)
									{
										Ext.MessageBox.show({
											 title: 'Demo-Version',
											 msg: 'The download of songs is not available in the demo.',
											 buttons: Ext.MessageBox.OK,
											 icon: Ext.MessageBox.INFO
										});								
									}
									else
										window.open("download.php?ID=" + data.ID);																			
									break;												
								case 'edit-entry':
									var tag_editor_form = new Ext.form.FormPanel({
											baseParams: { },
											baseCls: 'x-plain',
											labelWidth: 60,
											id: 'tag_editor_formID',
											url:'save-form.php',
											defaultType: 'textfield',
								
											items: [{
													fieldLabel: 'Filename',
													name: 'filename',
													anchor:'100%',  // anchor width by percentage
													allowBlank: false
											},{
													fieldLabel: 'Artist',
													name: 'artist',
													anchor:'100%'  // anchor width by percentage
											},{
													fieldLabel: 'Title',
													name: 'title',
													anchor: '100%'  // anchor width by percentage
											},{
													fieldLabel: 'Album',
													name: 'album',
													anchor: '100%'  // anchor width by percentage
											},{
													fieldLabel: 'Genre',
													name: 'genre',
													anchor: '100%'  // anchor width by percentage
											},{
													fieldLabel: 'year',
													name: 'year',
													width: '50'  // anchor width by percentage
											},{
													fieldLabel: 'Track #',
													name: 'track',
													width: '50'  // anchor width by percentage
											}]
										});
									var tag_editor = new Ext.Window({
											title: 'Tag-Editor',
											width: 500,
											height:270,
											minWidth: 300,
											minHeight: 270,
											layout: 'fit',
											plain:true,
											bodyStyle:'padding:5px;',
											buttonAlign:'center',
											items: tag_editor_form,
											buttons: [{
													iconCls: 'icon-accept',
													text: 'Save',
													handler: function()
													{
														if(DEMO_MODE)
														{
															Ext.MessageBox.show({
																 title: 'Demo-Version',
																 msg: 'The import of tags is not available in the demo',
																 buttons: Ext.MessageBox.OK,
																 icon: Ext.MessageBox.INFO
															});								
														}
														else
														{
															tag_editor_form.getForm().baseParams.ID = data.ID;
															tag_editor_form.getForm().baseParams.old_filename = htmlspecialchars_decode(data.filename);
															tag_editor_form.getForm().baseParams.full_path = htmlspecialchars_decode(data.full_path);
															tag_editor_form.getForm().baseParams.artistID = data.artistID;
															tag_editor_form.getForm().baseParams.albumID = data.albumID;
															tag_editor_form.getForm().baseParams.year = data.year;
															tag_editor_form.getForm().baseParams.old_artist = htmlspecialchars_decode(data.artist);
															tag_editor_form.getForm().baseParams.old_album = htmlspecialchars_decode(data.album);
															tag_editor_form.getForm().submit(
																{
																url:'save_tags.php', 
																waitMsg:'Saving...',
																success:function(form, action)
																	{
																		if(action.result.msg)
																			Ext.Msg.alert('Saving...', action.result.msg);
																		if(from=="mp3_list")
																			mp3_list_obj.getStore().reload();
																		else if(from=="play_list")
																			playlist_obj.getStore().reload();
																		tag_editor.close();
																	},
																failure:function(form, action)
																	{
																		switch (action.failureType) {
																				case Ext.form.Action.CLIENT_INVALID:
																						Ext.Msg.alert('Error', 'Invalid values');
																						break;
																				case Ext.form.Action.CONNECT_FAILURE:
																						Ext.Msg.alert('Error', 'Ajax-communication with server failed');
																						break;
																				case Ext.form.Action.SERVER_INVALID:
																					 Ext.Msg.alert('Error', action.result.msg);
																		}
																		tag_editor.close();
																	}
																})
														}
													}
											},{
													iconCls: 'icon-cancel',
													text: 'Cancel',
													handler: function()
													{
														tag_editor.close();
													}
												}
											]
										});
			
									tag_editor.show();
									var form = tag_editor_form.getForm();
									form.findField("filename").setValue(htmlspecialchars_decode(data.filename));
									form.findField("artist").setValue(htmlspecialchars_decode(data.artist));
									form.findField("title").setValue(htmlspecialchars_decode(data.title));
									form.findField("year").setValue(htmlspecialchars_decode(data.year));
									form.findField("album").setValue(htmlspecialchars_decode(data.album));
									form.findField("genre").setValue(htmlspecialchars_decode(data.genre));
									break;												
						}
				}
		}
	});
}

function GridRenderDuration(value, p, record) {
		return renderDuration(value);
}

function renderFilesize(value, p, record) {
	return number_format(value/1024,0,',','.') + " KB";
}

function renderBitrate(value, p, record) {
	return number_format(value/1000,0,',','.') + " kbps";
}	

function renderNumber(value, p, record) {
	return number_format(value,0,',','.');
}

function renderLink(value, p, record)
{
	return String.format( 
		'<a target=_blank href="download.php?ID={0}" target=_blank>{1}</a>',
		record.get('ID'),value);
}

function renderArtist(value, p, record)
{
	if(record.get('artistID')!=0)
		return String.format( 
		'<a href="javascript: void(0)" onClick="filter_setting(\'artist\',{0});">{1}</a>',
		record.get('artistID'),value);
	else
		return value;
}

function renderAlbum(value, p, record)
{
	return String.format( 
		'<a href="javascript: void(0)" onClick="filter_setting(\'album\',{0});">{1}</a>',
		record.get('albumID'),value);		
}

function renderPath(value, p, record)
{
	return String.format( 
		'<a href="javascript: void(0)" onClick="open_path(\'{0}\');">{1}</a>',
		addslashes(record.get('full_path')),value);		
}

function enable_disable_buttons(form_name,enable)
{
	if (enable)
	{
		Ext.getCmp(form_name + 'new_buttonID').enable();

		if (Ext.getCmp(form_name + 'navigationID').getValue() && Ext.getCmp(form_name + 'formID').getForm().reader.jsonData.rows[0].type!="guest" && Ext.getCmp(form_name + 'formID').getForm().reader.jsonData.rows[0].type!="admin") 
			Ext.getCmp(form_name + 'delete_buttonID').enable();
		else
			Ext.getCmp(form_name + 'delete_buttonID').disable();
		
		Ext.getCmp(form_name + 'save_buttonID').enable();
	}
	else
	{
		Ext.getCmp(form_name + 'new_buttonID').disable();
		Ext.getCmp(form_name + 'delete_buttonID').disable();
		Ext.getCmp(form_name + 'save_buttonID').disable();	
	}
}

function open_user_form(userID)
{
	if(!user_editor)
	{
		user_editor = new Ext.Window({
			title: 'User-Editor',
			width: 670,
			height: 370,
			resizable: false,
			layout: 'fit',
			border: false,
			stateful: false,
			plain:true,
			bodyStyle:'padding:5px;',
			buttonAlign:'center',
			items: user_form(userID),
			listeners:
			{
				close:function(p)
					{
						user_editor = "";
					}
			}
		});
		
		user_editor.show();
	}
}

function open_setup_form()
{
	if(!setup_editor)
	{
		setup_editor = new Ext.Window({
			title: 'Setup-Editor',
			width: 670,
			height: 370,
			resizable: false,
			layout: 'fit',
			border: false,
			stateful: false,
			plain:true,
			bodyStyle:'padding:5px;',
			buttonAlign:'center',
			items: setup_form(),
			listeners:
			{
				close:function(p)
					{
						setup_editor = "";
					}
			}
		});
		
		setup_editor.show();
	}
}

function my_about()
{
	Ext.MessageBox.show({
			 title: 'About MyWebJukebox 1.3.1',
			 msg: 'Homepage: <a target=_blank href=\'http://www.mywebjukebox.at\'>www.mywebjukebox.at</a><br />Written by <a href=\'mailto: malinski.k@gmx.at\'>Kamil Malinski</a><br />License: <a target=_blank href=\'http://www.gnu.org/copyleft/gpl.html\'>GNU GPL license v3</a><br /><br />Framework: <a href=\'http://extjs.com/\' target=_blank>ExtJS 3.0</a><br /><br />Beta-Tester:<br />Mexx<br />B4n4n3<br />megahorst<br /><br />Thanks to: Wisti (feedback), schubl (feedback), Niki (feedback), Sinusblitz (feedback), Matthieu (english localization)',
			 buttons: Ext.MessageBox.OK
	 });
}

/**
*
*  UTF-8 data encode / decode
*  http://www.webtoolkit.info/
*
**/

function cp1252_to_unicode(c)
{
	if (c < 160)
	{
			if (c==128) c=8364;
			else if (c==129) c=160; // (Rayo:) #129 using no relevant sign, thus, mapped to the saved-space #160
			else if (c==130) c=8218;
			else if (c==131) c=402;
			else if (c==132) c=8222;
			else if (c==133) c=8230;
			else if (c==134) c=8224;
			else if (c==135) c=8225;
			else if (c==136) c=710;
			else if (c==137) c=8240;
			else if (c==138) c=352;
			else if (c==139) c=8249;
			else if (c==140) c=338;
			else if (c==141) c=160; // (Rayo:) #129 using no relevant sign, thus, mapped to the saved-space #160
			else if (c==142) c=381;
			else if (c==143) c=160; // (Rayo:) #129 using no relevant sign, thus, mapped to the saved-space #160
			else if (c==144) c=160; // (Rayo:) #129 using no relevant sign, thus, mapped to the saved-space #160
			else if (c==145) c=8216;
			else if (c==146) c=8217;
			else if (c==147) c=8220;
			else if (c==148) c=8221;
			else if (c==149) c=8226;
			else if (c==150) c=8211;
			else if (c==151) c=8212;
			else if (c==152) c=732;
			else if (c==153) c=8482;
			else if (c==154) c=353;
			else if (c==155) c=8250;
			else if (c==156) c=339;
			else if (c==157) c=160; // (Rayo:) #129 using no relevant sign, thus, mapped to the saved-space #160
			else if (c==158) c=382;
			else if (c==159) c=376;
	} //if
	return c
}

var Utf8 = {
 
	// public method for url encoding
	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(cp1252_to_unicode((c >> 6) | 192));
				utftext += String.fromCharCode(cp1252_to_unicode((c & 63) | 128));
			}
			else {
				//console.log(String.fromCharCode((c >> 12) | 224) + ",",String.fromCharCode(((c >> 6) & 63) | 128) + "," + String.fromCharCode((c & 63) | 128));
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// public method for url decoding
	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;
	}
 
}

function in_array(needle,stack)
{
	for(var i=0;i<stack.length;i++)
	{
		if(stack[i]==needle)
			return true;
	}
	return false;
}

function undock_player()
{
	var playing_info = document.getElementById("playing_info_content");
	var parent_node = playing_info.parentNode;

	if(!player_window)
	{
		player_window = new Ext.Window({
				layout: 'fit',
				title: "MyWebJukebox-Player",
				width: 412,
				minWidth: 412,
				height: 193,
				minHeight: 193,
				resizable: false,
				stateful: false,
				bodyStyle: 'background: white',
				closeAction:'close',
				autoScroll: true,
				collapsible: true,
				html: "<div id='window_playing_info'></div>",
				plain: false,
				listeners:
				{
					resize: function()
					{
						/*if(!player_obj.volume)
							var volume = 100;
						else
							var volume = player_obj.volume;

						player_volume_bar.setValue(volume);*/
						//soundManager.last_position = 0;
					},
					beforeclose: function(p)
					{
						Ext.getCmp("right_southID").show();
						if(!Ext.getCmp("right_pangelID").isVisible())
							{
								Ext.getCmp("right_pangelID").expand(false);
							}
						var playing_info = document.getElementById("playing_info_content");
						var parent_node = playing_info.parentNode;
						
						var removed_node = parent_node.removeChild(playing_info);
						
						document.getElementById("playing_info").appendChild(removed_node);
						//init_player(true);
						player_window = false;
						player_obj.undock_button.show();

						var parent = document.getElementById("playing_info_content");
						var child = document.getElementById("info_cover_row");
						
						var song_info = document.getElementById("song_info");
						
						parent.insertBefore(song_info,child);				

						cp.set("player_window_show",0);
						Ext.getCmp("right_pangelID").doLayout();
						//player_obj.play_song(player_obj.last_data);
					}
				}
		});
		player_window.show();
		if(player_obj.undock_button) 
			player_obj.undock_button.hide();

		var parent = document.getElementById("playing_info_content");
		var child = document.getElementById("song_info");
		
		var info_cover_row = document.getElementById("info_cover_row");
		
		parent.insertBefore(info_cover_row,child);				
					
		cp.set("player_window_show",1);
		
		Ext.getCmp("right_southID").hide();
		Ext.getCmp("right_pangelID").doLayout();
		
		var removed_node = parent_node.removeChild(playing_info);
		
		document.getElementById("window_playing_info").appendChild(removed_node);
		//init_player(true);
		//player_obj.play_song(player_obj.last_data);
	}
}

function clear_cache()
{
	Ext.Msg.show({
		title:'Warning',
		msg: 'Are you sure that you want to clear the cache?',
		buttons: Ext.Msg.YESNO,
		buttonText: Ext.MessageBox.buttonText.yes = 'Yes',
		buttonText: Ext.MessageBox.buttonText.no = 'No',
		icon: Ext.MessageBox.QUESTION,
		fn: function(btn)
			{
				if(btn=="yes")
				{
					if(DEMO_MODE)
					{
						Ext.MessageBox.show({
							 title: 'Demo-Version',
							 msg: 'You can not clear cache in the demo',
							 buttons: Ext.MessageBox.OK,
							 icon: Ext.MessageBox.INFO
						});								
					}
					else
					{								
						Ext.Ajax.request(
							{
							url:'clear_cache.php', 
							params: {  },
							waitMsg:'Deleting...',
							success:function(form, action)
								{
								Ext.Msg.show({
									title: 'Delete', 
									msg: 'Successfully deleted',
									minWidth: 200,
									modal: true,
									icon: Ext.Msg.INFO,
									buttons: Ext.Msg.OK
									});
								},
							failure:function(form,action)
								{
								Ext.Msg.show({
									title: 'Error', 
									msg: 'Error while trying to delete the cache',
									minWidth: 200,
									modal: true,
									icon: Ext.Msg.ERROR,
									buttons: Ext.Msg.OK
									});									
								}
							})
					}
				}
			}
		}
	)
}