function Fensterhoehe () {
  if (window.innerHeight) {
    return window.innerHeight;
  } else if (document.body && document.body.offsetHeight) {
    return document.documentElement.offsetHeight;
  } else {
    return 0;
  }
}



function Fensterweite () {
  if (window.innerWidth) {
    return window.innerWidth;
  } else if (document.body && document.body.offsetWidth) {
    return document.documentElement.offsetWidth;
  } else {
    return 0;
  }
}


function hover_button(button, farbe, farbe_schrift) {
    if (navigator.userAgent.indexOf('MSIE') > -1) { // Für Internet Explorer
       button.style.backgroundColor = farbe;
       button.childNodes[0].firstChild.style.color = farbe_schrift;
    } else {
       button.style.backgroundColor = farbe;
       button.childNodes[1].firstChild.style.color = farbe_schrift;
    }
}
function hover_button_flyer(button, farbe, farbe_schrift) {
    button.style.backgroundColor = farbe;
    button.childNodes[1].childNodes[1].childNodes[1].firstChild.childNodes[3].firstChild.style.color = farbe_schrift;
}
function einblenden (divid) {
    if (document.getElementById) {
    window.onResize = null;
    document.getElementById(divid).style.display = "block";
    }
}
function einblenden_pa (divid) {
    if (document.getElementById) {
    window.onResize = null;
    parent.document.getElementById(divid).style.display = "block";
    }
}
function ausblenden (divid) {
    if (document.getElementById) {
    document.getElementById(divid).style.display = "none";
    }
}
function ausblenden_pa (divid) {
    if (document.getElementById) {
    parent.document.getElementById(divid).style.display = "none";
    }
}
function show_info(pin, ziel) {
    einblenden('info');
    if (ziel == "zentrum") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 110 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 150 +"px";
    }
    if (ziel == "thekla") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 150 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 50 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 490 +"px";
    }
    if (ziel == "reudnitz") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 50 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 100 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 200 +"px";
    }
    if (ziel == "gruenau") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop - 340 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 50 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 490 +"px";
    }
    if (ziel == "engelsdorf") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop - 50 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 180 +"px";
    }
    if (ziel == "thekla_s") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 50 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 50 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 370 +"px";
    }
    if (ziel == "thekla_g") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 50 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + 50 + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 150 +"px";
    }
    if (ziel == "taucha") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 40 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + document.getElementById('inhalt_text').offsetLeft +"px";
       document.getElementById('info').style.height = 280 +"px";
    }
    if (ziel == "taucha_tag") {
       document.getElementById('info').style.top = pin.offsetTop + document.getElementById('inhalt_text').offsetTop + 10 - 50 + "px";
       document.getElementById('info').style.left = pin.offsetLeft + document.getElementById('inhalt_text').offsetLeft - 30 +"px";
       document.getElementById('info').style.height = 200 +"px";
    }
    info.location.href = "info/"+ziel+".htm";
}