function BrowserCheck()
{
//	alert(navigator.appName);
//	alert(parseInt(navigator.appVersion));
	if (navigator.appName=="Netscape")
	{
		this.name = "ns";
	}
	else
	{
		if (navigator.appName=="Microsoft Internet Explorer")
		{
			this.name = "ie";
		}
		else
		{
			this.name = navigator.appName;
		}
	}
	
	this.version = parseInt(navigator.appVersion);
	
	this.ns = (this.name == "ns" && this.version >= 4);
	this.ns3 = (this.name == "ns" && this.version == 3);
	this.ns4 = (this.name == "ns" && this.version == 4);
	this.ns5 = (this.name == "ns" && this.version == 5);
	
	this.ie = (this.name == "ie" && this.version >= 4);
	this.ie4 = (navigator.userAgent.indexOf('MSIE 4')>0);
	this.ie5 = (navigator.userAgent.indexOf('MSIE 5')>0);
	
	if (this.ie5) this.version = 5;

	this.win = (navigator.userAgent.indexOf('Win')>0);
	this.mac = (navigator.userAgent.indexOf('Mac')>0);
	
	this.dhtml = (this.ns||this.ie);
	this.css = (this.ns||this.ie);
}

var is = new BrowserCheck(); 

if (is.dhtml)
{
	if (is.ns) docLayers = document.layers;
	if (is.ie) docLayers = document.all;
}

imgpath = "/sixcms/media.php/40/";
layername = "blub";
imgname="blub";
loaded = false;
active = false;

function preload()
{
	img1 = new Image();
	img1.src = "/sixcms/media.php/40/home_link_wasgeht_hi.gif"
	img2 = new Image();
	img2.src = "/sixcms/media.php/40/home_link_projekt_hi.gif"
}

function isloaded()
{
	preload();
	loaded = true;
}

function navOn(lname, iname, links)
{
	if(loaded)
	{
		if(layername == lname && active == true)
		{
			navOff(lname, iname);
		}
		else
		{
			if(layername != lname && active == true)
			{
				navOff(layername, imgname);
			}
			layername = lname;
			imgname = iname;
			oben = 260;
			ie_left = links;
			ie_top = oben;
			ns_left = links;
			ns_top = oben;
			if (is.ns5)
			{
				d = document.getElementById(layername);
				d.style.left = ns_left + "px";
				d.style.top = ns_top + "px";
				d.style.zIndex = 0;
				d.style.visibility = "visible";
			}
			else if (is.ns)
			{
				eval("document." + layername + ".left = " + ns_left);
				eval("document." + layername + ".top = " + ns_top);
				eval("document." + layername + ".zIndex = 0");
				eval("document." + layername + ".visibility = 'show'");
			}
			else if(is.ie)
			{
				eval("document.all." + layername + ".style.pixelLeft = " + ie_left);
				eval("document.all." + layername + ".style.pixelTop = " + ie_top);
				eval("document.all." + layername + ".style.zIndex = 0");
				document.all(layername).style.visibility= 'visible';	
			}
			document.images[imgname].src = imgpath + imgname + "_hi.gif";
			active = true;
		}
	}
}

function navOff(lname, iname)
{
	if (is.ns5)
	{
		d = document.getElementById(lname);
		d.style.zIndex = 0;
		d.style.visibility = "hidden";
	}
	else if (is.ns)
	{
		eval("document." + lname + ".visibility = 'hidden'");
		eval("document." + lname + ".zIndex = 0");
	}
	else if (is.ie)
	{
		document.all(lname).style.visibility = 'hidden';
		eval("document.all." + lname + ".style.zIndex = 0");
	}
	document.images[iname].src = imgpath + iname + ".gif";
	active = false;
}