function btn_disable (element, formular, text) {
	element.disabled=true;
	element.value=text;
	document.forms[formular].submit();
}

function FormImagePreview (action) {
	var img = CSGetImage(action[3]);
	var field = document.forms[action[1]].elements[action[2]];
	if (img && field && field.value != '') {
		var image_types = ','+action[5]+',';
		var extension = ','+(field.value.substr(field.value.lastIndexOf(".")+1)).toLowerCase()+',';
		if (image_types.indexOf (extension) >= 0)
			img.src = "file://"+field.value;
		else
			img.src = action[4];
	}
}

function cookie_write (n, w, e) {
	var a = new Date();
	a = new Date(a.getTime() +e);
	document.cookie = n+'='+w+';path=/;expires='+a.toGMTString()+';';
}

function cookie_read(n) {
	a = document.cookie;
	res = '';
	while (a != '') {
		while (a.substr(0,1) == ' ') {
			a = a.substr(1,a.length);
		}
		cookiename = a.substring(0,a.indexOf('='));
		if (a.indexOf(';') != -1) {
			cookiewert = a.substring(a.indexOf('=')+1,a.indexOf(';'));
		}
		else {
			cookiewert = a.substr(a.indexOf('=')+1,a.length);
		}
		if (n == cookiename) {
			res = cookiewert;
		}
		i = a.indexOf(';')+1;
		if (i == 0) {
			i = a.length
		}
		a = a.substring(i,a.length);
	}
	return(res)
}

// blink when new message
function message_blink () {
	if (typeof(blink) == "undefined")
		blink = 1;
	if (blink == 1) {		 
		$("nav_message").style.color = "#FF3333";
		blink = 0;
	}
	else {
		$("nav_message").style.color = "#000000";
		blink = 1;
	}
}

function insert_emoticon (emoticon) {
	doc = document;
	f = doc.getElementById('message');
	
	if (f==null) {
		doc = opener.document;
		f = doc.getElementById('message');
	}
	if (f==null) {
		doc = opener.document;
		f = doc.getElementById('chat_message_box');
	}
	
	if (f!=null) {
		if (doc.all) { // IE
			f.focus();
			doc.selection.createRange().text = doc.selection.createRange().text + emoticon;
		}
		else { // OTHER
			var s = f.selectionStart;
			var e = f.selectionEnd;
	
			var selection = emoticon + f.value.substring(s, e);
	
			f.value = f.value.substring(0, s) + selection + f.value.substring(e);
			f.focus();
			f.selectionStart = f.selectionEnd = s + emoticon.length;
		}
	}
}


// edit_thread
function format_text (textarea, tag, param, unclose) {
	f = $(textarea);

	if (param)
		param = "='"+param+"'";
	else
		param = "";

	if (document.all) { // IE
		f.focus();
		
		if (!unclose)
			document.selection.createRange().text='['+tag+param+']'+document.selection.createRange().text+'[/'+tag+']';
		else
			document.selection.createRange().text='['+tag+param+' /]'+document.selection.createRange().text;
	}
	else { // NS
		var s = f.selectionStart;
		var e = f.selectionEnd;
	
		if (!unclose) {
			var selection = '['+tag+param+']' + f.value.substring(s, e)+'[/'+tag+']';
			new_sel_tag = (tag.length*2+5);
		}
		else {
			var selection = '['+tag+param+' /]' + f.value.substring(s, e);
			new_sel_tag = (tag.length+4);
		}
			
		f.value = f.value.substring(0, s) + selection + f.value.substring(e);
		f.focus();
		f.selectionStart = s;
		f.selectionEnd = e + new_sel_tag + param.length;
	}
}
	
function add_url (textarea) {
	input = window.prompt("Bitte gebe eine URL ein.", "http://");
	if (input && input!='http://')
		format_text (textarea, "URL", input);
}

// ========== CHAT =============

function getHTTPObject() {
	var xmlHttp = false;
	
	//... Internet Explorer
	try {
		xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch(e) {
		try {
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(e) {
			xmlHttp = false;
		}
	}
	//... Mozilla, Opera, Safari etc.
	if (!xmlHttp  && typeof(XMLHttpRequest) != 'undefined') {
		xmlHttp = new XMLHttpRequest();
	}
return xmlHttp;
}

function scrollDown() {
	$("chat_textbox").scrollTop = $("chat_textbox").scrollHeight - $("chat_textbox").offsetHeight;
}


function loadChatData(action) {
	if (chat_stat == true || action == 'get_user') {
		var date = new Date();

		var xmlHttpChat = getHTTPObject();
		if (xmlHttpChat) {
			if (action == "get_chat_small") {
				xmlHttpChat.open("GET", "/public/chat/small.html?cache="+date.getTime(), true);
			}
			else if (action == "get_chat_big") { 
				xmlHttpChat.open("GET", "/public/chat/big.html?cache="+date.getTime(), true);
			}
			else if (action == "get_user") {
				xmlHttpChat.open("GET", "/public/chat/online.html?cache="+date.getTime(), true);
			}

			xmlHttpChat.onreadystatechange = function () {
				if (xmlHttpChat.readyState == 4 && xmlHttpChat.responseText) {
					text = xmlHttpChat.responseText;
					
					if (action == "get_user") {
						if (last_userlist != text) {
							$("userlist").innerHTML = text;
							last_userlist = text;
						}
					}
					else if (action == "get_chat_small" || action == "get_chat_big") { 
						//if (last_chat_textbox != text) {
							$("chat_textbox").innerHTML = text;
							last_chat_textbox = text;
						//}
					}
				}
			}
			xmlHttpChat.send(null);
		}
	}
}

function saveChatData(text_elem) {
	if (chat_stat == true) {
		if ($(text_elem).value) {
			var xmlHttpSave = getHTTPObject();
			if (xmlHttpSave) {
				xmlHttpSave.open('POST', "/chatdata");
				xmlHttpSave.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
				xmlHttpSave.send("text="+$(text_elem).value.replace(/\&/,"[AND]")+"&action=set_chat");
			}
			$(text_elem).value = '';
			$(text_elem).focus();
		}
	}
}

function displayChatArea (showhide) {
	if ($('chat_area') != undefined) {
		if (showhide == false)
			$('chat_area').style.display = 'none';
		else
			$('chat_area').style.display = '';
	}
}

function saveChatStatus(checkbox) { 
	var xmlHttpSave = getHTTPObject();
	if (xmlHttpSave) {
		xmlHttpSave.open('POST', "/chatdata");
		xmlHttpSave.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		chat_stat = checkbox.checked;
		displayChatArea(chat_stat);
		xmlHttpSave.send("status="+chat_stat+"&action=set_chat_status");
		window.setTimeout("loadChatData('get_user')", 100);
	}
}

function announceChat() { 
	var xmlHttpSave = getHTTPObject();
	if (xmlHttpSave) {
		xmlHttpSave.open('POST', "/chatdata");
		xmlHttpSave.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlHttpSave.send("action=announce");
	}
}

function initChat (chattype, chatstatus) {
	last_chat_textbox = "";
	last_userlist = "";
	chat_stat = chatstatus;
	
	get_user_interval = 10*1000;
	get_chat_interval = 2*1000;
	get_announce_interval = 4*60*1000;
	
	window.setInterval("loadChatData('get_user')", get_user_interval);
	//window.setInterval("loadChatData('get_chat_"+chattype+"')", get_chat_interval);
	window.setInterval("announceChat()", get_announce_interval);
}

//MESSAGE_DEL_CONFORM
function del_message(id) {
	check_confirm = confirm("Sind Sie sicher, dass Sie diese Nachricht entfernen wollen?");
	if(check_confirm == true)
		location.href="/messages/?confirm_delete=true&id="+id;
}

function del_sent_message(id) {
	check_confirm = confirm("Sind Sie sicher, dass Sie diese Nachricht entfernen wollen?");
	if(check_confirm == true)
		location.href="/messages/sent/?confirm_delete=true&id="+id;
}

//GUESTBOOK_DEL_CONFORM
function del_guestbook(id) {
	check_confirm = confirm("Sind Sie sicher, dass Sie diesen Eintrag entfernen wollen?");
	if(check_confirm == true)
		location.href="/profile/?confirm_delete=true&del_id="+id;
}

// QUEST_EDITOR DEL_QUEST
function del_quest(id) {
	check_confirm = confirm("Soll die Frage wirklich entfernt werden?");
	if(check_confirm == true)
		location.href="/questions/?confirm_delete="+id;
}

function searchfield_color(field) {
	if ($(field).value != "" && $(field).value != "0") {
		$(field).style.background="#0b8fe8";
		$(field).style.color="white";
	}
}

function switch_quest_type (type) {
	if (type == 3) {
		$("bonus_image1").style.display='';
		$("bonus_image2").style.display='';
		$("bonus_audio1").style.display='none';
		$("bonus_audio2").style.display='none';
	}
	else if (type == 2) {
		$("bonus_image1").style.display='none';
		$("bonus_image2").style.display='none';
		$("bonus_audio1").style.display='';
		$("bonus_audio2").style.display='';
	}
	else {
		$("bonus_image1").style.display='none';
		$("bonus_image2").style.display='none';
		$("bonus_audio1").style.display='none';
		$("bonus_audio2").style.display='none';
	}
}	

// IEFLASHFIX
function ieflashfix (code) {
	document.write (code);
}


// cat check all
function cat_check_init () {
	count_checked = 0;	
	count_all = 0;
	for (i=0; $("cat_"+i)!=null; i++)
		count_all++;
}

function cat_check_all (element) {
	if (typeof(count_checked)=='undefined' || typeof(count_all)=='undefined')
		cat_check_init();
	
	for (i=0; $("cat_"+i)!=null; i++) {		
		if (eval(element).checked == true) {
			$("cat_"+i).checked = true;
			count_checked++;
		}
		else
			$("cat_"+i).checked = false;
	}
}

function cat_check_one (element) {
	if (undefined===count_checked || undefined===count_all)
		cat_check_init();
		
	if (eval(element).checked == true)
		count_checked++;
	else
		count_checked--;
	
	if (count_checked == count_all)
		$("cat_all").checked = true;
	else
		$("cat_all").checked = false;
}

function youtube_preload (id) {
	elem = $('movieholder');
	elem.innerHTML = '<object width="230" height="195"><param name="movie" value="http://www.youtube.com/v/'+id+'&hl=de&fs=1&rel=0&color1=0xe1600f&color2=0xfebd01&autoplay=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/'+id+'&hl=de&fs=1&rel=0&color1=0xe1600f&color2=0xfebd01&autoplay=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="230" height="195"></embed></object>';
}

function youtube_display (type) {
	elem = $('movieholder');

	if (type=='hide') {
		elem.innerHTML = '';
		elem.style.visibility='hidden';
	}
	else if (type=='show') {
		elem.style.visibility='visible';
	}
}

function change_css(stylesheet) {
	$('style_css').href = '/public/styles/'+stylesheet+'/style.css';
}
/*
function subnav_roll (elem) {
	if (typeof(roll_status)=='undefined') {
		roll_status = new Array();
		roll_status[1] = roll_status[2] = roll_status[3] = roll_status[4] = false;
	}
	
	for (i=1;i<=4;i++) {
		if (roll_status[i] == true && i != elem) {
			Effect.BlindUp('nav_'+i, {duration: 0.3});
			roll_status[i] = false;
		}
	}
	
	if (roll_status[elem] != true) {
		setTimeout("Effect.BlindDown('nav_"+elem+"', {duration: 0.3})", 350);
		roll_status[elem] = true;
	}
}
*/

function subnav_load () {
	elem_old = 0;
	if	(elem_cookie = cookie_read('nav_elem')) {
		elem_old = elem_cookie;
		//Effect.Appear('nav_'+elem_old, {duration: 0});
	} 
}

function subnav_roll (elem) {
	if (elem != elem_old) {
		Effect.Appear('nav_'+elem, {duration: 0.2});

		for (i=1;i<=4;i++) {
			if (i != elem) {
				Effect.Fade('nav_'+i, {duration: 0.1});
			}
		}
		
		elem_old = elem;
		cookie_write('nav_elem', elem_old, 1000*60*60*24*365);
	}
}