myvalue=0.9;
direction=1;
bild=Array();
feld=Array(
	"images/header1.jpg",
	"images/header2.jpg",
	"images/header3.jpg",
	"images/header4.jpg",
	"images/header5.jpg",	
	"images/header6.jpg",   	
	"images/header7.jpg",  	
	"images/header8.jpg",
	"images/header9.jpg");
	
for (i=0;i<feld.length;i++)
  {
  bild[i]=new Image;
  bild[i].src=feld[i];
  }

function revolve()
  {
    direction*=(-1);
  }
function drawer()
	{
	if(direction==1) myvalue-=0.01;
	if(direction==-1) myvalue+=0.01;
	mycountervalue=1-myvalue;
	document.getElementById('toplayer').style.opacity=myvalue;
	document.getElementById('lowlayer').style.opacity=mycountervalue;
	if(myvalue<0.01)
	  {
	  bildnummer1=feld[(parseInt(Math.random()*(feld.length)))];
	  document.getElementById('toplayer').style.backgroundImage="url("+bildnummer1+")";
	  revolve();
	  }
	if(myvalue>1)
	  {
	  bildnummer2=feld[(parseInt(Math.random()*(feld.length)))];
	  document.getElementById('lowlayer').style.backgroundImage="url("+bildnummer2+")";
	  revolve();
	  }
	//document.getElementById('chekov').innerHTML=myvalue+" / "+direction;
	}


  value3=setInterval("drawer()",100);