//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);
      }
    }  
   
// function alterSetzten() {
	// document.cookie = "alter=ja";
// }

/*----------------------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";
  }
}

/*---------------FADER LEFT---------------------
-----------------------------------------------------------*/

var speed = 1;
var pause = 4000;
var imgs;

function fader() { //starten
	if(document.getElementById("meinFader")) {
		imgs = document.getElementById("meinFader").getElementsByTagName("img");
		window.setTimeout(next, pause);
	}
}

function fade(step) { //Fader
	step = step || 0;

	imgs[counter].style.opacity = step/100;
	imgs[counter].style.filter = "alpha(opacity=" + step + ")"; // 

	step = step + speed;

	if (step <= 100) {
		window.setTimeout(function () { fade(step); }, 5);
	} else {
		window.setTimeout(next, pause);
	}
}

function next() { //neues Bild
	if (typeof(counter) != "number") {
		counter = 0;
	}

	counter++;
	
	if(counter>=imgs.length) {
		counter=0;
		for(i=0; i<imgs.length; i++) {
			imgs[i].style.opacity = 0;
			imgs[i].style.filter = "alpha(opacity=0)"; // 
		}
	}	
	
	if (counter < imgs.length) {
		fade();
	}
}

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

function validate_form() {
	var text="Bitte vergessen Sie nicht, die folgenden Felder noch auszufuellen:\n\n";
	validity = true; // assume valid
	if (!check_empty(document.kontakt.name.value)) {
		validity = false; text= text+ "\t->\tName ist leer\n";
	}
	if (!check_empty(document.kontakt.tel.value)) {
		validity = false; text= text+ "\t->\tTelefon ist leer\n";
	}
	if (!check_email(document.kontakt.email.value)) {
		validity = false; text= text+ "\t->\tE-Mail Adresse ist ungueltig\n";
	}
	if (!check_empty(document.kontakt.mitteilung.value)) {
		validity = false; text= text+ "\t->\tMitteilung ist leer\n";
	}

	neu = MD5(document.kontakt.code1.value);

	if ( neu+".png" != document.kontakt.code2.value) {
		validity = false; text= text+ "\t->\tSpam-Schutz (ungueltig)\n ";
	}

	if (validity == false) {
		alert(text);
	}

	return validity;
}

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

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

/*----------------------VERSCHENKEN--------------------------
-----------------------------------------------------------*/

function verschenken(wert) {
	if(document.getElementById("schenkenJA")) {
		if(wert=='load') {
			var radio = document.getElementById("schenkenJA").checked;
			if(radio==true)
				document.getElementById("verschenken").style.display = "";
			else document.getElementById("verschenken").style.display = "none";
		}	
		else if(wert=='ja') {
			document.getElementById("verschenken").style.display = "";
		}
		else if(wert=='nein') {
			document.getElementById("verschenken").style.display = "none";
		}
	}
}

/*-------------------------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 = '';
}