var detect = navigator.userAgent.toLowerCase();
var bOS,browser,version,total,thestring;

function checkBrowser(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

if (checkBrowser('konqueror')) {
	browser = "Konqueror";
	bOS = "Linux";
}
else if (checkBrowser('safari')) browser = "Safari"
else if (checkBrowser('opera')) browser = "Opera"
else if (checkBrowser('firefox')) browser = "Firefox"
else if (checkBrowser('mozilla')) browser = "Mozilla"
else if (checkBrowser('msie')) browser = "IE"
else if (!checkBrowser('compatible')) {
	browser = "Netscape Navigator"
	version = detect.charAt(8);
}
else browser = "An unknown browser";

if (!version) version = detect.charAt(place + thestring.length);

if (!bOS) {
	if (checkBrowser('linux')) bOS = "Linux";
	else if (checkBrowser('x11')) bOS = "Unix";
	else if (checkBrowser('mac')) bOS = "Mac"
	else if (checkBrowser('win')) bOS = "Windows"
	else bOS = "an unknown operating system";
}


function showHideBox(box_show, box_hide)
{
	if (document.getElementById(box_show).style.display == 'none') {
		document.getElementById(box_show).style.display = 'block'
		document.getElementById(box_hide).style.display = 'none'
	} else {
		document.getElementById(box_show).style.display = 'none'
		document.getElementById(box_hide).style.display = 'block'
	}
	return false;
}




var nav;

function hideobject(objname) {
	if (document.all) { //IE
		document.all[objname].style.display="none";
		eval('document.all.'+objname+'.style.display="none"');
	}
	if (document.layers) { //NS
		document.layers[objname].display="none";
		eval('document.'+objname+'.document.display="none"');
	}
	if (document.getElementById) { document.getElementById(objname).style.display="none"; }

	nav = 0;
}
function showobject(objname) {
	if (document.all) {
		document.all[objname].style.display="block";
		eval('document.all.'+objname+'.style.aydispl="block"');
	}
	if (document.layers) {
		document.layers[objname].display="block";
		eval('document.'+objname+'.document.display="block"');
	}
	if (document.getElementById) { document.getElementById(objname).style.display="block"; }

	nav = 1;
}
function hideNav() {
	if(nav == 1) {
		hideobject('nav_menu_locations');
	}
}




function insertUsername(formular) {

	var ersetze = document[formular].user_vorname.value+' '+document[formular].user_nachname.value;

	document.getElementById("Username").removeChild(document.getElementById("Username").firstChild);

	var TextZuvor = document.createTextNode(ersetze);
	document.getElementById("Username").appendChild(TextZuvor);

}