// JavaScript Document
var ns = document.layers;
var ie = document.all;
var w3c = document.documentElement;

function get_element(name) 
	{
		if(w3c||navigator.userAgent.indexOf("Opera") != -1) {
			return document.getElementById(name);
		}
		else if(ns) {
			return eval("document." + name);
		}
		if(ie) {
			return eval("document.all." + name);
		}
    
	}
function close_all()
	{
	login_show(false);
	bgcolor_show(false);
	del_background_show(false);
	meldung_show(false);
	bild_change_show(false);
	}
	
function login_show(show)
	{
	close_all;
	if(show==true)
		{
			if ((ns)&&(document.layers["login"])) {
				document.layers["login"].visibility = "show";
			}
			if ((!ns)&&(get_element("login"))) {
				get_element("login").style.visibility = "visible";
			}
		}
	else
		{
			if ((ns)&&(document.layers["login"])) {
				document.layers["login"].visibility = "hide";
			}
			if ((!ns)&&(get_element("login"))) {
				get_element("login").style.visibility = "hidden";
			}
		}
	}
	
function bgcolor_show(show)
	{
	close_all;
	if(show==true)
		{
			if ((ns)&&(document.layers["bgcolor"])) {
				document.layers["bgcolor"].visibility = "show";
			}
			if ((!ns)&&(get_element("bgcolor"))) {
				get_element("bgcolor").style.visibility = "visible";
			}
		}
	else
		{
			if ((ns)&&(document.layers["bgcolor"])) {
				document.layers["bgcolor"].visibility = "hide";
			}
			if ((!ns)&&(get_element("bgcolor"))) {
				get_element("bgcolor").style.visibility = "hidden";
			}
		}
	}
	
function meldung_show(show)
	{
	close_all;
	if(show==true)
		{
			if ((ns)&&(document.layers["meldung"])) {
				document.layers["meldung"].visibility = "show";
			}
			if ((!ns)&&(get_element("meldung"))) {
				get_element("meldung").style.visibility = "visible";
			}
		}
	else
		{
			if ((ns)&&(document.layers["meldung"])) {
				document.layers["meldung"].visibility = "hide";
			}
			if ((!ns)&&(get_element("meldung"))) {
				get_element("meldung").style.visibility = "hidden";
			}
		}
	}
	
function del_bild_show(show,nr)
	{
	close_all;
	if(show==true)
		{
			if ((ns)&&(document.layers["del_bild"])) {
				document.layers["del_bild"].visibility = "show";
			}
			if ((!ns)&&(get_element("del_bild"))) {
				get_element("del_bild").style.visibility = "visible";
			}
			document.form_del_bild.bild_nr.value=nr;
		}
	else
		{
			if ((ns)&&(document.layers["del_bild"])) {
				document.layers["del_bild"].visibility = "hide";
			}
			if ((!ns)&&(get_element("del_bild"))) {
				get_element("del_bild").style.visibility = "hidden";
			}
		}
	}

function bild_change_show(show)
	{
	close_all;
	if(show==true)
		{
			if ((ns)&&(document.layers["bild_change"])) {
				document.layers["bild_change"].visibility = "show";
			}
			if ((!ns)&&(get_element("bild_change"))) {
				get_element("bild_change").style.visibility = "visible";
			}
		}
	else
		{
			if ((ns)&&(document.layers["bild_change"])) {
				document.layers["bild_change"].visibility = "hide";
			}
			if ((!ns)&&(get_element("bild_change"))) {
				get_element("bild_change").style.visibility = "hidden";
			}
		}
	}