//COOKIES AUSLESEN  
    function leseCookie(name) {
      var position = document.cookie.indexOf(name + "=");
      if (position < 0) {
        return "";
      }
      else {
        var strichpunkt = document.cookie.indexOf(";", position);
        if (strichpunkt < 0) {
          strichpunkt = document.cookie.length;
        }
        var daten = document.cookie.substring(position + name.length + 1, strichpunkt);
        return unescape(daten);
      }
    }  
    
/*----------------------NAVIGATION---------------------------
-----------------------------------------------------------*/

function auf(menu) {
  // DOM ALLE NEUEN BROWSER
  if (document.getElementById) {
    document.getElementById(menu).style.visibility="visible";
  }

  // IE 5
  if (document.all) {
    document.all[menu].style.visibility="visible";
  }

  // NN 4
  if (document.layers) {
    document.layers[menu].visibility="visible";
  }
}

function zu(menu) {
  if (document.getElementById) {
    document.getElementById(menu).style.visibility="hidden";
  }

  if (document.all) {
    document.all[menu].style.visibility="hidden";
  }

  if (document.layers) {
    document.layers[menu].visibility="hidden";
  }
}

/*---------------E-Mail Formular checker---------------------
-----------------------------------------------------------*/

function validate_form() {
  var text="Bitte vergessen Sie nicht, die folgenden Felder noch auszufüllen:\n\n";
  validity = true; // assume valid
  if (!check_empty(document.kontakt.name.value)) {
    validity = false; text= text+ "\t->\tName\n";
  }

  if (!check_empty(document.kontakt.mitteilung.value)) {
    validity = false; text= text+ "\t->\tMitteilung\n";
  }
/*  if (!check_empty(document.kontakt.code1.value)) {
    validity = false; alert('Es wurde kein Name eingetragen.');
  }*/
  
  
  neu = MD5(document.kontakt.code1.value);
  
  if ( neu+".png" != document.kontakt.code2.value) {
    validity = false; text= text+ "\t->\tSpam-Schutz (ungültig)\n ";
  }
  
  if (validity == false) {
    alert(text);
  }
  
/*  if (!check_email(document.kontakt.EMAIL.value))
        { validity = false; alert('E-Mail Adresse ist ungültig.'); }*/
  return validity;
}

function check_empty(text) {
  return (text.length > 0); // gibt false zurück wenn leehr
}

/*function check_email(address) {
  if ((address == "")
    || (address.indexOf ('@') == -1)
    || (address.indexOf ('.') == -1))
      return false;
  return true;
}*/

/*-------------------------SHOW------------------------------
-----------------------------------------------------------*/

function show(url, pos) {
  //alert(url);
  
  if(document.getElementById("flash")) {
    document.getElementById("flash").style.display = "none";
  }
  if(document.getElementById("flash1")) {
    document.getElementById("flash1").style.display = "none";
  }
  
  document.getElementById('show').style.display="block";
  document.getElementById('image').style.display="block";
  document.getElementById('image').style.position=pos;
  
  var ausgabe = '<div style="padding-top: 20px;" align="center"><img onClick="showoff();" src="' + url + '" alt="" /><br />';
     ausgabe += '<img style="padding-bottom: 20px;" onClick="showoff();" src="images/close.png" alt="" /></div>';
  document.getElementById('image').innerHTML = ausgabe;

}

function showoff() {

  if(document.getElementById("flash")) {
    document.getElementById("flash").style.display = "inline";
  }
  if(document.getElementById("flash1")) {
    document.getElementById("flash1").style.display = "inline";
  }

  document.getElementById('show').style.display="none";
  document.getElementById('image').style.display="none";
  document.getElementById('image').innerHTML = '';
}