var last='';
var wait=false;
var newNav = 0;
var nav_active;

var navHi = new Array();
var navLo = new Array();


// preload images
for (i=1; i<=6; i++) {

		navHi[i] = new Image();
		navHi[i].src = "images/nav_0" + i + "_hi.gif";
		navLo[i] = new Image();
		navLo[i].src = "images/nav_0" + i + "_lo.gif";
}

// mouseOver
function sethi(which) {
	if (document.images) {
		whichButton = "nav0" + which;		
		document.images[whichButton].src=navHi[which].src;
		return true;
	}
	else return false;
}

// mouseOut
function setlo(which) {
	if (document.images && nav_active != which) {
		whichButton = "nav0" + which;
		document.images[whichButton].src=navLo[which].src;
		return true;
	}
	else return false;
}

function setActive(which) {
	nav_active=which;
	sethi(which);
}



// open new window
function oeffneFenster(seitenName,instanzName,fensterBreite,fensterHoehe) {
    breiteBildschirm = screen.availWidth;
    hoeheBildschirm = screen.availHeight - 20;
    randLinks = breiteBildschirm/2-(fensterBreite/2);
    randOben = hoeheBildschirm/2-(fensterHoehe/2);
    fensterParameter = "top="+randOben+",left="+randLinks+",width="+fensterBreite+",height="+fensterHoehe+",scrollbars=no,toolbar=no,status=no,resizeable=no,location=no";
    satellitenFenster = window.open(seitenName,instanzName,fensterParameter);
	satellitenFenster.focus();
}