// Javascript Fehler unterdruecken
// onerror = stopError;
function stopError()
{
return true;
}

// Umgebungsvariablen auslesen

	// convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();

    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is_ie5up to detect IE5.
    var is_major = parseInt(navigator.appVersion);
    var is_minor = parseFloat(navigator.appVersion);

    // Note: Opera and WebTV spoof Navigator.  We do strict client detection.
    // If you want to allow spoofing, take out the tests for opera and webtv.
    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
    var is_nav2 = (is_nav && (is_major == 2));
    var is_nav3 = (is_nav && (is_major == 3));
    var is_nav4 = (is_nav && (is_major == 4));
    var is_nav4up = (is_nav && (is_major >= 4));
    var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    var is_nav6 = (is_nav && (is_major == 5));
    var is_nav6up = (is_nav && (is_major >= 5));
    var is_gecko = (agt.indexOf('gecko') != -1);


    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    var is_ie3    = (is_ie && (is_major < 4));
    var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
    var is_ie4up  = (is_ie && (is_major >= 4));
    var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
    var is_ie5up  = (is_ie && !is_ie3 && !is_ie4);
    var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);
    var is_ie6    = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1) );
    var is_ie6up  = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

    // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
    // or if this is the first browser window opened.  Thus the
    // variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.
    var is_aol   = (agt.indexOf("aol") != -1);
    var is_aol3  = (is_aol && is_ie3);
    var is_aol4  = (is_aol && is_ie4);
    var is_aol5  = (agt.indexOf("aol 5") != -1);
    var is_aol6  = (agt.indexOf("aol 6") != -1);

    var is_opera = (agt.indexOf("opera") != -1);
    var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
    var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
    var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
    var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
    var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);

    var is_webtv = (agt.indexOf("webtv") != -1); 

    var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
    var is_AOLTV = is_TVNavigator;

    var is_hotjava = (agt.indexOf("hotjava") != -1);
    var is_hotjava3 = (is_hotjava && (is_major == 3));
    var is_hotjava3up = (is_hotjava && (is_major >= 3));

// Image folder

imageUrl="http://www.tela-design.com/dateien/images/";

// blur focus

function nix(x)
	{
	if(x.blur)x.blur();
	}

// hover images

function over(x)
	{
	//if (x<10) x="0"+x;
	url=imageUrl+folder+"_"+x+".gif";
	document.getElementById("t"+x).src = url;
	}

function out(x)
	{
	//if (x<10) x="0"+x;
	url=imageUrl+folder+"_"+x+".jpg";
	document.getElementById("t"+x).src = url;
	}


var InfoWindow;

function openInfoWindow(url)
	{
	y=290;
	x=400;
	if (InfoWindow) {if (!InfoWindow.closed) InfoWindow.close()}
	h=screen.availHeight-30;
	w=screen.availWidth-30;
	t=(h-y)/2; if (t<0) t=0;
	u=(w-x)/2; if (w<0) w=0;
	InfoWindow = window.open(url,"detail",'width='+x+',height='+y+',left='+u+',top='+t+',scrollbars=no,status=no,menubar=no,location=no');
	InfoWindow.focus();
	}

// Subnavigation ein-/ausschalten

subaktiv=0;
aktiv=0;

function showSubnavi(x)
	{
	if (x==0)
		{
		if ((subaktiv > 0)*(subaktiv != aktiv)*(subaktiv != aktiv))
			{
			xx=getLayerStyleRef("subnavi"+subaktiv);
			xx.visibility="hidden";
			subaktiv=0;
			}
		}
	else
		{
		xx=getLayerStyleRef("subnavi"+x);
		xx.visibility="visible";
		if ((subaktiv > 0)*(subaktiv != aktiv)*(subaktiv != x))
			{
			xx=getLayerStyleRef("subnavi"+subaktiv);
			xx.visibility="hidden";
			}
		subaktiv=x;
		}
	}
	
function setAktiv(x)
	{
	showSubnavi(x);
	}

// Ebenen ansprechen nach Browserversion

function getLayerStyleRef(layname)
	{
	if (is_nav4) return document.layers[layname];
	if (is_ie4) return document.all[layname].style;
	if (is_ie5up) return document.getElementById(layname).style;
	if (is_opera5up) return document.getElementById(layname).style;
	if (is_nav6up) return document.getElementById(layname).style;
	return null;
	}