NumberImgMenu	= new Array();
var is4;
if(navigator.appName=="Netscape" || navigator.appName=="Microsoft Internet Explorer") {
 if (parseInt(navigator.appVersion)<4) { is4=false; }
 else {is4=true; }
}
if (is4) {
	for(var i = 0; i < 6; i++)
	{
		NumberImgMenu[i]= new Image();
		NumberImgMenu[i].src= "gifs/menu"+i+"a.gif";
	}
}
function menuin_menu(bild) {
	if (!is4) return;
	document.images["menu"+bild].src=NumberImgMenu[bild].src;
}
function menuout_menu(bild) {
	if (!is4) return;
	document.images["menu"+bild].src="gifs/menu"+bild+".gif";
}

function copy_jahr() {
    var start=1998;
    var Jetzt = new Date();
    var Jahr = Jetzt.getFullYear();
	if (start<Jahr) return start+"-"+Jahr;
	else return Jahr;
}

	var isNav4, isIE4;
	if (parseInt(navigator.appVersion.charAt(0)) >= 4) {
	isNav4 = (navigator.appName == "Netscape") ? true : false;
	isIE4 = (navigator.appName == "Microsoft Internet Explorer") ? true : false;
	}