var isNav4 = false;
var isW3C = false;
var isIE = false;
var aktiv = 1;

function init() {
        //window.alert(navigator.appName);

        // Browser ueberpruefen
        if (navigator.appName.indexOf("Netscape") != -1) {
                if (parseInt(navigator.appVersion) == 4) {
                        // Netscape Communicator 4.x
                        isNav4 = true;
                                                document.write("Funktioniert nicht mit Navigator 4.x!!!!!");
                } else if (parseInt(navigator.appVersion) >= 5) {
                        // Netscape 6 oder Mozilla
                        isW3C = true;
                }
        } else {
                if ((parseInt(navigator.appVersion) >= 4) &&
                        (navigator.appName.indexOf("Microsoft") != -1)) {
                        // MSIE 4.x oder hoeher
                        isIE = true;
                }

                if (navigator.userAgent.indexOf("Opera 5") != -1) {
                        // Opera 5.x - wird wie MSIE behandelt
                        isIE = true;
                }
        }


        // *************************** breite des Aussenrahmens und Textlayers (Produkte)
        if (isW3C) {
               obj = document.getElementById("textlayer");
               var breite = parseInt(obj.style.width);
               //alert(breite);
               breite -= 6;
               obj.style.width = breite.toString() + "px";
        }

        if (isIE) {
               obj = document.getElementById("aussenrahmen");
               var breite = parseInt(obj.style.width);
               var höhe = parseInt(obj.style.height);
               //alert(breite);
               breite += 2;
               höhe += 1;
               obj.style.width = breite.toString() + "px";
               obj.style.height = höhe.toString() + "px";
        }

}

function menurot(name) {
         var image = "gifs/" + name + "_rot.gif";
         //alert(document.images[name].src);
         document.images[name].src = image;
}

function menugrau(name) {
         var image = "gifs/" + name + "_grau.gif";
         document.images[name].src = image;
}


function submenu_ein(nr) {
         var name = "submenu" + nr;
         obj = document.getElementById(name);
         obj.style.visibility = "visible";
}

function submenu_aus(nr) {
         var name = "submenu" + nr;
         obj = document.getElementById(name);
         obj.style.visibility = "hidden";
}



function showbild(bildnr) {     // bild und Text zu Namen anzeigen = Layers visible machen;
        //alert(bildnr);
         // alten verstecken
        var name = "bild" + aktiv.toString();
        var obj = document.getElementById(name);
        obj.style.visibility = "hidden";
        name = "text" + aktiv.toString();
        obj = document.getElementById(name);
        obj.style.visibility = "hidden";

        // neu sichtbar machen
        name = "bild" + bildnr.toString();
        obj = document.getElementById(name);
        obj.style.visibility = "visible";
        name = "text" + bildnr.toString();
        obj = document.getElementById(name);
        obj.style.visibility = "visible";

        aktiv = bildnr;
}

function schreib_vb() {
           document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n'); //FS hide this from IE4.5 Mac by splitting the tag
           document.write('on error resume next \n');
           document.write('MM_FlashCanPlay = ( IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & MM_contentVersion)))\n');
           document.write('</SCR' + 'IPT\> \n');
}


function schrift(ele, farbe) {
         var obj = document.getElementById(ele);
         obj.style.color = farbe;
         //obj.style.fontWeight = style;
}