var active_button = 0;
var anzahl = 6;

var LayArr = new Array('foerderkreis','vorstand','mitglied','kontakt','aktuelles','galerie1','galerie2','vorstand_dmf','vorstand_fjb','vorstand_fb','vorstand_fs','vorstand_dvm','vorstand_cam','vorstand_ml','vorstand_km','vorstand_ck','vorstand_hh','galerie3','letswetz','galerie4','galerie5');

if (document.images) {
	grafik = new Array();
	grafik[0] = new Image();grafik[0].src = "images/n_foerderkreis.gif"
	grafik[1] = new Image();grafik[1].src = "images/n_foerderkreis_aktiv.gif"
	grafik[2] = new Image();grafik[2].src = "images/n_vorstand.gif"
	grafik[3] = new Image();grafik[3].src = "images/n_vorstand_aktiv.gif"
	grafik[4] = new Image();grafik[4].src = "images/n_mitglied.gif"
	grafik[5] = new Image();grafik[5].src = "images/n_mitglied_aktiv.gif"
	grafik[6] = new Image();grafik[6].src = "images/n_kontakt.gif"
	grafik[7] = new Image();grafik[7].src = "images/n_kontakt_aktiv.gif"
	}

function openwindow(theURL,winName,features) {
	newWindow = window.open(theURL,winName,features)
	if (!newWindow.opener) {
		newWindow.opener = window
		}
	newWindow.focus()
	}
	
function anim(id, imageURL) {
	if (active_button != id) {
		imageURL = "images/" + imageURL + ".gif";
		if (document.layers) document['pic_'+id].src = imageURL == 'none' ? null : imageURL;
		else if (document.all) document.all['pic_'+id].src = imageURL == 'none' ? 'none' : imageURL;
		else if (document.getElementById) document.getElementById('pic_'+id).src = imageURL == 'none' ? 'none' : imageURL;
		}
	}

function aktiv(id, imageURL, name) {
	if (active_button != id) {
		imageURL = "images/" + imageURL + ".gif";
		if (document.layers) document['pic_'+id].src = imageURL == 'none' ? 0 : imageURL;
		else if (document.all) document.all['pic_'+id].src = imageURL == 'none' ? 'none' : imageURL;
		else if (document.getElementById) document.getElementById('pic_'+id).src = imageURL == 'none' ? 'none' : imageURL;
		active_button = id;

		for (var i=0; i<anzahl; i++) { 
		imageURL = "images/nav_" + i + ".gif";
			if (i != id) {
				if (document.layers) document['pic_'+i].src = imageURL == 'none' ? 0 : imageURL;
				else if (document.all) document.all['pic_'+i].src = imageURL == 'none' ? 'none' : imageURL;
				else if (document.getElementById) document.getElementById('pic_'+i).src = imageURL == 'none' ? 'none' : imageURL;
				}
			}
		}
	}

function showhide(obj) {
	for (i=0; i<LayArr.length; i++) {
		if (LayArr[i]!=obj) hide(LayArr[i]);
		else show(LayArr[i]);
		}
	}

function show(obj) {
	if (document.layers)
		document.layers[obj].visibility = 'show' == 'none' ? null : 'show';

	else if (document.all)
		document.all[obj].style.visibility = 'visible' == 'none' ? 'none' : 'visible';

	else if (document.getElementById)
		document.getElementById(obj).style.visibility = 'visible' == 'none' ? 'none' : 'visible';
	}

function hide(obj) {
	if (document.layers)
		document.layers[obj].visibility = 'hide' == 'none' ? null : 'hide';

	else if (document.all)
		document.all[obj].style.visibility = 'hidden' == 'none' ? 'none' : 'hidden';

	else if (document.getElementById)
		document.getElementById(obj).style.visibility = 'hidden' == 'none' ? 'none' : 'hidden';
	}