function Go(x)
   {
    if(x == "nothing")
    {
      document.forms[0].reset();
      document.forms[0].elements[0].blur();
      return;
    }
    else
    {
      parent.top.location.href = x;
      document.forms[0].reset();
      document.forms[0].elements[0].blur();
    }
  }
  function checkPLZ(x)
  {
    if ( x.length < 2 )
    {
    	alert("Bitte mindestens eine zweistellige Postleitzahl eingeben!");
	return false;
    }
    else
    {
        if ( x.length > 5 )
	{
	   alert("Bitte hoechstens 5 Ziffern eingeben!");
	   return false;
	}
	else
	{
	   return true;
	}
    }
  }

function diashow(){
	

	var a = Math.round(19*Math.random());
	
	dia = "http://www.drk.de/images/head_banner/head_banner"+a+".jpg";
	window.document.images[0].src=dia;//[a]
	
	//alert (a);
	window.setTimeout ('diashow ()' , 20000)
}

function diashow1()
{
var dia = new Array ("bilder/banner/head_banner01.jpg", "bilder/banner/head_banner02.jpg", "bilder/banner/head_banner1.jpg", "bilder/banner/head_banner2.jpg", "bilder/banner/head_banner3.jpg", "bilder/banner/head_banner4.jpg", "bilder/banner/head_banner5.jpg", "bilder/banner/head_banner6.jpg", "bilder/banner/head_banner7.jpg", "bilder/banner/head_banner8.jpg", "bilder/banner/head_banner9.jpg", "bilder/banner/head_banner10.jpg", "bilder/banner/head_banner11.jpg", "bilder/banner/head_banner12.jpg", "bilder/banner/head_banner13.jpg", "bilder/banner/head_banner14.jpg", "bilder/banner/head_banner15.jpg", "bilder/banner/head_banner18.jpg", "bilder/banner/head_banner19.jpg", "bilder/banner/head_banner20.jpg", "bilder/banner/head_banner21.jpg", "bilder/banner/head_banner22.jpg", "bilder/banner/head_banner23.jpg", "bilder/banner/head_banner24.jpg", "bilder/banner/head_banner25.jpg", "bilder/banner/head_banner29.jpg", "bilder/banner/head_banner30.jpg", "bilder/banner/head_banner31.jpg", "bilder/banner/banner_a.jpg", "bilder/banner/banner_b.jpg", "bilder/banner/banner_c.jpg", "bilder/banner/banner_d.jpg");
var max = dia.length-1 ;
var a = Math.round(max*Math.random());
//alert (a);
window.document.images[0].src=dia[a];
window.setTimeout ('diashow ()' , 20000)
}

function diashow1000()
{
var dia2 = new Array ("http://www.drk.de/images/head_banner_1000/head_banner01.jpg", "http://www.drk.de/images/head_banner_1000/head_banner02.jpg", "http://www.drk.de/images/head_banner_1000/head_banner03.jpg", "http://www.drk.de/images/head_banner_1000/head_banner04.jpg", "http://www.drk.de/images/head_banner_1000/head_banner05.jpg", "http://www.drk.de/images/head_banner_1000/head_banner06.jpg", "http://www.drk.de/images/head_banner_1000/head_banner07.jpg", "http://www.drk.de/images/head_banner_1000/head_banner08.jpg", "http://www.drk.de/images/head_banner_1000/head_banner09.jpg", "http://www.drk.de/images/head_banner_1000/head_banner10.jpg", "http://www.drk.de/images/head_banner_1000/head_banner11.jpg", "http://www.drk.de/images/head_banner_1000/head_banner12.jpg", "http://www.drk.de/images/head_banner_1000/head_banner13.jpg", "http://www.drk.de/images/head_banner_1000/head_banner14.jpg", "http://www.drk.de/images/head_banner_1000/head_banner15.jpg", "http://www.drk.de/images/head_banner_1000/head_banner16.jpg", "http://www.drk.de/images/head_banner_1000/head_banner17.jpg", "http://www.drk.de/images/head_banner_1000/head_banner18.jpg", "http://www.drk.de/images/head_banner_1000/head_banner19.jpg", "http://www.drk.de/images/head_banner_1000/banner_a.jpg", "http://www.drk.de/images/head_banner_1000/banner_b.jpg", "http://www.drk.de/images/head_banner_1000/banner_c.jpg", "http://www.drk.de/images/head_banner_1000/banner_d.jpg");
var max = dia2.length-1 ;
var b = Math.round(max*Math.random());

window.document.images[0].src=dia2[b];
window.setTimeout ('diashow1000 ()' , 20000)
}