// DOM for all browsers
//
function obj(name) {
	if(document.all) 	return eval("document.all."+name);
	else 				return document.getElementById(name);
}


function show_only_div ( id ) {
	obj('editlayer_menu').style.visibility='hidden';		obj('editlayer_menu').style.display='none';
	obj('editlayer_node').style.visibility='hidden';		obj('editlayer_node').style.display='none';
	obj('editlayer_node_out').style.visibility='hidden';	obj('editlayer_node_out').style.display='none';
	obj('editlayer_code').style.visibility='hidden';		obj('editlayer_code').style.display='none';
	obj('editlayer_func').style.visibility='hidden';		obj('editlayer_func').style.display='none';
	obj('editlayer_attrib').style.visibility='hidden';		obj('editlayer_attrib').style.display='none';
	obj('editlayer_version').style.visibility='hidden';		obj('editlayer_attrib').style.display='none';
	obj('editlayer_customtool').style.visibility='hidden';	obj('editlayer_customtool').style.display='none';

	obj(id).style.visibility='visible';
	obj(id).style.display='block';
}



function edit_prepare ( area , table , field , id , nodename , article , allow_edit ) {
	var data;

	show_adminlayer();
	if( edit_data[id] ) {
//		data	= unescape( edit_data[id] );
		data	= unescape( edit_data[id].replace( /%/g , "%25")  );
	} else {
		data	= "";
	}

	if( data.match( /^PRE[\n\r]+/ ) ) {
		data	= data.replace( /^PRE[\n\r]+/ , '' );
		data	= data.replace( /\n\r/g , "\n" );
		data	= data.replace( /\r\n/g , "\n" );
		data	= data.replace( /\r/g , "\n" );
		data	= data.replace( /\n/g , "<br>" );
//alert(data);
	}

	obj('edit_table_data').value		= table;
	obj('edit_field_data').value		= field;
	obj('edit_id_data'   ).value		= id;

	if( obj('edit_nodename_data') )		obj('edit_nodename_data').value		= nodename;
	if (obj('edit_article_data'	) ) 	obj('edit_article_data'	).value		= article;
	
	obj('output_table').innerHTML	= table;
	obj('output_name').innerHTML	= nodename;
	obj('output_article').innerHTML	= field;

	obj('edit_query_version' ).value		= 1;


	show_only_div( 'editlayer_node' );

//alert(data);

	// force plain Editor?

	if( data.match(/\[\[/)  ) {
		switch_editor( 'plain' , 0 );
		obj('edit_node_editor_locked').value		= 1;
	} else if( nodes_used_as_list[nodename] == 1 ) {
		switch_editor( 'plain' , 0 );
		obj('edit_node_editor_locked').value		= 2;
	} else {
		switch_editor( 'rich' , 0 );
		obj('edit_node_editor_locked').value		= 0;
	}

	set_editor_content ( 'both' , data );
	
	window.location.hash	='top';
}

function set_editor_content ( which , content ) {

	if( which == 'plain' || which == 'both' ) {
		obj('edit_value_data').value	= content;
	} 
	if( which == 'rich' || which == 'both' ) {
		var editor;
		editor = FCKeditorAPI.GetInstance('FCKeditor_node');
		editor.SetHTML( content );
		editor.Focus();
//		alert( editor.GetHTML() );
	}
}

function get_editor_content ( which ) {
	if( which == '' ) {
		obj("edit_node_editor_which").value;
	}
	
	if( which == 'plain' ) {
		return obj('edit_value_data').value;
	} else {
		var editor;
		editor = FCKeditorAPI.GetInstance('FCKeditor_node');
		return editor.GetXHTML();
	}
}


function switch_editor( targetmode , verbose ) {
	var data;
	if( obj('edit_node_editor_locked').value != 0 && verbose ) {
		if( obj('edit_node_editor_locked').value == 1 ) {	alert( 'Grafischer Editor blockiert, die Daten enthalten Programmcode.' ); }
		if( obj('edit_node_editor_locked').value == 2 ) {	alert( 'Grafischer Editor blockiert, die Daten sind eine Liste.' ); }
	} else {
		
		data	= get_editor_content("");

		if( targetmode == 'rich' ) {
			other		= 'plain';
		} else {
			targetmode	= 'plain';
			other		= 'rich';
		}

		set_editor_content( targetmode , data );
	
		obj("edit_node_editor_which").value			= targetmode;
		
		obj("edit_node_editor_rich").style.display	= 'none';
		obj("edit_node_editor_plain").style.display	= 'none';
		obj("edit_node_editor_"+targetmode).style.display	= 'inline';
	}
}

function FCKeditor_OnComplete( editorInstance ) {
	//  switch_editor( 'rich' );
}

function body_onkeypress(e) {
	var kC  = (window.event) ?		event.keyCode : e.keyCode;
	var Esc = (window.event) ?		27 : e.DOM_VK_ESCAPE;
	if(kC==Esc  &&  obj('adminlayer') )	{
		close_adminlayer();
	}
}

function popup (adr) {
	win = window.open(adr, "", "width=300,height=400,left=100,top=200");
	win.focus();
}

function goto_url (adr) {
	document.location.href	= adr;
}



// Thank you to http://aktuell.de.selfhtml.org/artikel/javascript/utf8b64/utf8.htm
function decode_utf8( utftext ) {
	var plaintext = ""; var i=0; var c=c1=c2=0;
	// while-Schleife, weil einige Zeichen uebersprungen werden
	while(i<utftext.length)
		{
		c = utftext.charCodeAt(i);
		if (c<128) {
			plaintext += String.fromCharCode(c);
			i++;}
		else if((c>191) && (c<224)) {
			c2 = utftext.charCodeAt(i+1);
			plaintext += String.fromCharCode(((c&31)<<6) | (c2&63));
			i+=2;}
		else {
			c2 = utftext.charCodeAt(i+1); c3 = utftext.charCodeAt(i+2);
			plaintext += String.fromCharCode(((c&15)<<12) | ((c2&63)<<6) | (c3&63));
			i+=3;}
		}
	return plaintext;
}


// Thank you to http://aktuell.de.selfhtml.org/artikel/javascript/utf8b64/utf8.htm
function encode_utf8(rohtext) {
	// dient der Normalisierung des Zeilenumbruchs
	rohtext = rohtext.replace(/\r\n/g,"\n");
	var utftext = "";
	for(var n=0; n<rohtext.length; n++)
		{
		// ermitteln des Unicodes des  aktuellen Zeichens
		var c=rohtext.charCodeAt(n);
		// alle Zeichen von 0-127 => 1byte
		if (c<128)
			utftext += String.fromCharCode(c);
		// alle Zeichen von 127 bis 2047 => 2byte
		else if((c>127) && (c<2048)) {
			utftext += String.fromCharCode((c>>6)|192);
			utftext += String.fromCharCode((c&63)|128);}
		// alle Zeichen von 2048 bis 66536 => 3byte
		else {
			utftext += String.fromCharCode((c>>12)|224);
			utftext += String.fromCharCode(((c>>6)&63)|128);
			utftext += String.fromCharCode((c&63)|128);}
		}
	return utftext;
}


function show_adminlayer() {
	all_flash_visibility('hide');
	obj('adminlayer_trigger').style.visibility	= 'hidden';
	obj('adminlayer').style.visibility			= 'visible';
	obj('adminlayer').style.display				= 'block';
	show_only_div( 'editlayer_code' );
}

function close_adminlayer() {
	all_flash_visibility('show');
	obj('adminlayer_trigger').style.visibility	= 'visible';
	obj('adminlayer').style.visibility			= 'hidden';
	obj('adminlayer').style.display				= 'none';
	
	show_only_div( 'editlayer_code' );
	obj('editlayer_code').style.visibility='hidden';
	obj('editlayer_code').style.display='none';
}

function delete_adminlayer() {
	all_flash_visibility('show');
	obj('adminlayer_trigger').style.display		= 'none';
	obj('adminlayer').style.display				= 'none';
}

// Aus- und Einblenden aller Flash-Movies fuer Admin
function all_flash_visibility ( visi ) {
	f	= document.getElementsByTagName("object");
	for( var i=0; i<f.length ; i++ ) {
		if( visi=='show' ) {
			f[i].parentNode.style.visibility	= "visible";
		} else {
			f[i].parentNode.style.visibility	= "hidden";
		}
	}
}

function createXMLHttpRequest() {
	try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
	try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
	try { return new XMLHttpRequest(); } catch(e) {}
	alert("XMLHttpRequest not supported");
	return null;
}



function mysql_select( table , field , id ) {
	var req = createXMLHttpRequest();
	q	= '../start/index.php?command=XMLHTTP_MYSQL_SELECT&edit_table=' + table+'&edit_field='+field+'&id='+id ;
	req.open('GET', encodeURI(q) , false); 
	req.send(null);
	return req.responseText;
}

function mysql_send_command( command ) {
	var req = createXMLHttpRequest();
	q	= '../start/index.php?command=XMLHTTP_MYSQL_SEND_COMMAND&xmlhttp_mysql_send_command=' + command ;
	req.open('GET', encodeURI(q) , false); 
	req.send(null);
	return req.responseText;
}

function delete_node2( table, id) {
	query	= "DELETE FROM " + table + " WHERE id='" + id + "' LIMIT 1";
	mysql_send_command( query );
	alert( "Bitte Seite neu laden.");
}

function edit_prepare2 ( table , id , edit_type , field ) {
	var data;

	show_adminlayer();
	
	data	= mysql_select( table , field , id );


	obj('edit_table_data').value		= table;
	obj('edit_field_data').value		= field;
	obj('edit_id_data'   ).value		= id;

	obj('edit_query_version' ).value	= 2;

	show_only_div( 'editlayer_node' );


	set_editor_content ( 'both' , data );

	window.location.hash	='top';
}

function child_nodes_recursive( o ) {
	// if( typeof( o ) == 'undefined' ) 		return Array();

	var nodes	= as_array( o.childNodes );
	var children;
	for( var i=0 ; i<o.childNodes.length ; i++ ) {
		children	= as_array( child_nodes_recursive( o.childNodes[i] ) );
		nodes	= nodes.concat( children );
	}
	return nodes;
}


// convert a nodelist to array
function as_array( l ) {
	tmp	= new Array();
	for( var i=0 ; i<l.length ; i++ ) {
		tmp[ tmp.length ]	= l[i];
	}
	return tmp;
}


// body_onload funktion registrieren, die dann spaeter ausgefuehrt werden soll
onload_function	= new Array();
function register_onload( f ) {
	onload_function[onload_function.length]	= f;
}

// Registrierte body_onload Funktionen als Event ausfuehren
function body_onload() {

	// New
	for( var i=0 ; i<onload_function.length ; i++ ) {
		eval( onload_function[i] );
	}
	
	// Old
	if( body_onload_custom ) {
		body_onload_custom();
	}
}