// Funktionen

function showroom_on() {
	document.getElementById('showroom_off').style.visibility='hidden';
	document.getElementById('content').style.visibility='hidden';
	document.getElementById('news_off').style.visibility='hidden';
	document.getElementById('showroom_on').style.visibility='visible';
	document.getElementById('showroom').style.visibility='visible';
	document.getElementById('menu_off').style.visibility='visible';
	/*document.getElementById('mitte').style.backgroundImage='url(img/bg_showroom.jpg)';*/
}

function showroom_off() {
	document.getElementById('showroom_on').style.visibility='hidden';
	document.getElementById('showroom_off').style.visibility='visible';
	document.getElementById('showroom').style.visibility='hidden';
	document.getElementById('news_off').style.visibility='visible';
	document.getElementById('content').style.visibility='visible';
	document.getElementById('menu_off').style.visibility='hidden';
	document.getElementById('mitte').style.backgroundImage='url(img/bg_titel.jpg)';
}

function show_submenu(menuitem) {
	document.getElementById(menuitem).style.visibility='visible';
}

function hide_submenu(menuitem) {
	document.getElementById(menuitem).style.visibility='hidden';
}

/*function hide_submenu_func(menuitem) {
	document.getElementById(menuitem).style.visibility='hidden';
}

function hide_submenu(menuitem) {
	var func="hide_submenu_func('"+menuitem+"')";
	window.setTimeout(func,100);
}
*/
function show_subsub(menuitem) {
	document.getElementById(menuitem).style.visibility='visible';
}

function hide_subsub(menuitem) {
	document.getElementById(menuitem).style.visibility='hidden';
}

function news_on() {
	document.getElementById('news').style.visibility='visible';
	document.getElementById('news_on').style.visibility='visible';
	document.getElementById('news_off').style.visibility='hidden';
	document.getElementById('showroom_off').style.visibility='hidden';
}

function news_off() {
	document.getElementById('news').style.visibility='hidden';
	document.getElementById('news_on').style.visibility='hidden';
	document.getElementById('news_off').style.visibility='visible';
	document.getElementById('showroom_off').style.visibility='visible';
}

function smooth_content_10() {
	document.getElementById('content').style.filter = "alpha(opacity:15)";
	document.getElementById('content').style.MozOpacity = 15/100;
}

function smooth_content_80() {
	document.getElementById('content').style.filter = "alpha(opacity:90)";
	document.getElementById('content').style.MozOpacity = 90/100;
}

function link(verknuepfung) {
	location.href=verknuepfung;
}

function change_bgcolor(farbe) {
	document.getElementById('content').style.backgroundColor=farbe;
}

function open_pic(datei,breite,hoehe) {
	var masse="width="+breite+",height="+hoehe+",left=0,top=0,resizeable=no,scrollbars=no";
	dateineu="showpic.php?datei="+datei;
	win=window.open(dateineu,"vorschau",masse);
}

function changeMenu(menuid) {
	document.getElementById(menuid).style.backgroundImage="url(image/wofi_menu_htg_over.jpg)";
}

function changeMenuBack(menuid) {
	document.getElementById(menuid).style.backgroundImage="url(image/wofi_menu_htg.jpg)";
}

function changeSubMenu(menuid) {
	document.getElementById(menuid).style.backgroundImage="url(image/wofi_submenu_htg_over.jpg)";
}

function changeSubMenuBack(menuid) {
	document.getElementById(menuid).style.backgroundImage="url(image/wofi_submenu_htg.jpg)";
}

function anpassen(){
  document.getElementById('ishow').style.height = document.getElementById('ishow').document.getElementById('ibild').offsetHeight + 'px';
 }

function changesite(goto) {
	location.replace(goto);
}