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

function init() {
        //window.alert(navigator.appName);
         //alert("test");
        // Browser ueberpruefen
        if (navigator.appName.indexOf("Netscape") != -1) {
                if (parseInt(navigator.appVersion) == 4) {
                        // Netscape Communicator 4.x
                        isNav4 = true;
                        //alert("nav4");
                        document.write("Funktioniert nicht mit Navigator 4.x!!!!!");
                } else if (parseInt(navigator.appVersion) >= 5) {
                        // Netscape 6 oder Mozilla
                        isW3C = true;   //alert("w3c");
                }
        } else {
                if ((parseInt(navigator.appVersion) >= 4) &&
                        (navigator.appName.indexOf("Microsoft") != -1)) {
                        // MSIE 4.x oder hoeher
                        isIE = true;  //alert("ie");
                }

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


        // Event Capturing
        //if ((isNav4) || (isW3C)) {
        //        document.captureEvents(Event.MOUSEDOWN | Event.MOUSEUP);
        //}

        //document.onmousedown = startDrag;
        //document.onmouseup = endDrag;
        //document.write("hallo");
}




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 zeiger_ein(ele) {
        var ele = document.getElementById(ele);
		ele.style.cursor = "pointer";
}

function zeiger_aus(ele) {
    var ele = document.getElementById(ele);    
	ele.style.cursor = "default";
}

//******************************************************************************************************
//           Schriftfarbe wechseln
//******************************************************************************************************
function schriftfarbe(ele, farbe) {
         var obj = document.getElementById(ele);
         obj.style.color = farbe;
         //obj.style.fontWeight = style;
}

function photowechsel(nr, id) {

           i = Number(id);
           nr = Number(nr);

           photoakt[i] += nr;
           if (photoakt[i] == maxphotos[i]) photoakt[i] = 0;
           if (photoakt[i] == -1) photoakt[i] = maxphotos[i]-1;

           var name = "photos" + id;
           obj = document.getElementById(name);
           //alert(obj.src);
           //bild.src = photos[i][photoakt[i]];
           obj.src =  photos[i][photoakt[i]];
    }