var ie = document.all;
var w3c = document.documentElement;
var timerOn = false;
var menOpen = "nav01";
var menOpen2 = false;
var navOpen2 = false;

function get_element(name) {
    if(w3c||navigator.userAgent.indexOf("Opera") != -1) {
    return document.getElementById(name);
	}
	if(ie) {
	return eval("document.all." + name);
	}
}

function checkTimer() {
	if (timerOn) {
		clearTimeout(timerOn);
		timerOn = false;
	}
}

function startTimer() {
	timerOn = setTimeout("zeigen2();", 750);
}

function weg() {
	if (menOpen) {
		if (get_element(menOpen)) {
		get_element(menOpen).style.visibility = "hidden";
		}
		menOpen = false;
	}
	weg2();
}

function weg2() {
	if (menOpen2) {
		if (get_element(menOpen2)) {
		get_element(menOpen2).style.visibility = "hidden";
		}
		menOpen2 = false;
	}
	if (navOpen2) {
		if (get_element(navOpen2)) {
		get_element(navOpen2).style.backgroundColor = "transparent";
		get_element(navOpen2).style.borderLeft = "1px solid #FFFFFF";
		get_element(navOpen2).style.borderRight = "1px solid #FFFFFF";
		get_element(navOpen2).style.borderBottom = "0px";
		}
		navOpen2 = false;
	}
}

function zeigen(welches){
	weg();
	if (welches) {
		if (get_element(welches)) {
			get_element(welches).style.visibility = "visible";
			/*get_element(welches).style.width = "1024px";*/ /* Sch... IE */
			get_element(welches).style.width = "975px"; /* Sch... IE */
			/* Hintergrund der Navi 2 Eb anzeigen */
			get_element('header').style.height = "140px";
			get_element('main').style.paddingTop = "30px";
			get_element('schattenunten').style.visibility = "visible";

		}
		menOpen = welches;
	}
}

function zeigen2(welches2){
	weg2();
	var welchesanker2 = String(welches2 + "a");
	if (welches2) {
		if (get_element(welches2)) {
			get_element(welches2).style.visibility = "visible";
			get_element(welchesanker2).style.backgroundColor = "#F8F8F8";
			get_element(welchesanker2).style.borderLeft = "1px solid #999999";
			get_element(welchesanker2).style.borderRight = "1px solid #999999";
			get_element(welchesanker2).style.borderBottom = "1px dotted #999999";
		}
		if (get_element(welches2)) {
			get_element(welches2).onmouseover = checkTimer;
			get_element(welches2).onmouseout = startTimer;
		}
		menOpen2 = welches2;
		navOpen2 = welchesanker2;
	}
}