// Validiert die Eingabe der Postleitzahl
function ValidatePlz(control) {
    if (control.value == '') {
        control.style["border"] = "1px solid #FF6600";
        control.focus();
        return false;
    }

    control.style["border"] = "1px solid #999999";
    return true;
}

// Validiert die Eingabe des Usernames und Passworts
function ValidateLogin(username, passwort) {
    if (username.value == '') {
        username.style["border"] = "1px solid #FF6600";
        username.focus();
        return false;
    }
    else username.style["border"] = "1px solid #999999";

    if (passwort.value == '') {
        passwort.style["border"] = "1px solid #FF6600";
        passwort.focus();
        return false;
    }
    else passwort.style["border"] = "1px solid #999999";
    
    return true;
}

function ValidateNumKey() {
    var keyChar = event.keyCode;
    if (keyChar < 48 || keyChar > 57) return false;
}

// Globale Vars
var __DIV, __OVERLAY;

// Bild zeigen
function ShowImg(ovid, id, url) {
    __DIV = document.getElementById(id);
    __OVERLAY = document.getElementById(ovid);

    __DIV.innerHTML = '';

    var image = new Image();
    image.src = url;

    __DIV.appendChild(image);
    __DIV.style['visibility'] = 'visible';
    __OVERLAY.style['visibility'] = 'visible';

    var el = document.createElement('BR');
    __DIV.appendChild(el);

    var span = document.createElement('SPAN');
    span.innerHTML = "<center><a class='mainlink' style='padding-top: 5px' href='javascript:void(0)' onClick='CloseImg()'>Schließen X</a></center>";
    __DIV.appendChild(span);
}

// Bild verstecken
function CloseImg() {
    __DIV.style['visibility'] = 'hidden';
    __OVERLAY.style['visibility'] = 'hidden';
}

var Bild = 1;
var __CURRIMG;

function Bildwechsel() {

    __CURRIMG.filters.blendTrans.Apply(); 

    if (Bild == 1) {
        Bild = 2;
        __CURRIMG.src = Bild1.src;
    }
    else if (Bild == 2) {
        Bild = 3;
        __CURRIMG.src = Bild2.src;
    }
    else if (Bild == 3) {
        Bild = 4;
        __CURRIMG.src = Bild3.src;
    }
    else if (Bild == 4) {
        Bild = 5;
        __CURRIMG.src = Bild4.src;
    }
    else if (Bild == 5) {
        Bild = 6;
        __CURRIMG.src = Bild5.src;
    }
    else if (Bild == 6) {
        Bild = 1;
        __CURRIMG.src = Bild6.src;
    }

    // Filter starten
    __CURRIMG.filters.blendTrans.Play();
    
    window.setTimeout(Bildwechsel, 8000);
}