/*
	Titel:	Pull-Down-Untermenüs
	Autor:	Christoph Bergmann
	Erweiter:	Thomas Reitz
	WWW:	http://acc.de
	EMail:	cb@acc.de

	Copyright (c) 1998 Milch & Zucker - C.Bergmann und J.Gamperl.
	All rights reserved. Alle Rechte vorbehalten. URL: http://dhtml.seite.net

	Dieser Code darf für nicht-kommerzielle, sowie kommerzielle Zwecke frei
	genutzt und angepaßt werden, solange dies unentgeltlich erfolgt und
	dieser Vermerk bestehen bleibt. 
*/

var old="a50";
var memold;
var subold;
var init_ok=false;

function hide_layer(x){
	if (document.layers) { // Netscape 4.x
		document.layers[x].visibility = "hidden";
	} else if (document.all){ // Internet Explorer 4.x
		document.all[x].style.visibility = "hidden";
	} else if (document.getElementById) {// Internet Explorer 5.x und Netscape 6.x
		document.getElementById(x).style.visibility = "hidden";
	}
}

function show_layer(x){
	if (document.layers) {
		document.layers[x].visibility = "show";
	} else if (document.all){ 
		document.all[x].style.visibility = "visible";
	} else if (document.getElementById) {
		document.getElementById(x).style.visibility = "visible";
	}
}

function SetzteWert(layername,wert){
//Internet Explorer ab 4.x
if(typeof(document.all) == 'object'){
document.all[layername].style.left = wert+'px';
}
//Netscape 6.x
if(typeof(document.getElementById(layername)) == 'object' && typeof(document.all) != 'object'){
document.getElementById(layername).style.left = wert+'px';
}
//Netscape 4.x
if(typeof(document[layername]) == 'object'){
document[layername].left = 0;
}
//Opera ab 5.x
if(typeof(window.opera)){
document.all[layername].style.left = 0;
}
}

function do_menu(x){
	if(!old)
		old=memold;
	if(old!=x){
		show_layer(x);
		old=x;
	} else
		old="";
}

function do_check(x){
	if(old && old!=x){
		hide_layer(old);
		show_layer(x);
		old=x;
	}
	do_submenu();
}

function do_out(){
	if(old)
		hide_layer(old);
	memold=old; old="a50";
	do_submenu();
}

function do_submenu(x){
	if(subold){
		hide_layer(subold);
		subold="";
	}
	if(x){
		show_layer(x);
		subold=x;
	}
}

// Fuer die Adresse "Finken Verlag unten links anzuzeigen
function show_adresse(){

	if (window.innerHeight) y= window.innerHeight;
	else if (document.body && document.body.offsetHeight) y= document.body.offsetHeight;
	y = y - 100;
	y = 490;
	if (document.layers) { // Netscape 4.x
		document.layers['adresse'].top=y;
		document.layers['adresse'].visibility = "visible";
	}
	else if(document.all) { // Internet Explorer 4.x
		y = y+'px';
		document.all['adresse'].style.top=y;
		document.all['adresse'].style.visibility="visible";
	}
	else if(document.getElementById) { // Internet Explorer 5.x und Netscape 6.x
		y = y+'px';
		document.getElementById('adresse').style.top=y;
		document.getElementById('adresse').style.visibility = "visible";
	}
}

function init(){
	// index geladen?
	if (top.index != true) {
		top.location.href = "/cgi-bin/show_page/show.cgi?bereich=schule&page=/schule/allgemein/hauptseite.htm";
	}
	show_adresse();
	for ( i=50; i<64;i++){
		show_layer('a'+i);
	}
	init_ok=true;
}

// eof