function werbung() {
 	
  if(document.getElementById('werbungKopf')){
		var werbung = document.getElementById('werbungKopf').getElementsByTagName('div');
		var len = werbung.length;
		var iTimer = 10000;
		var m = 0;
		
		document.getElementById('indWerbung').value = Math.floor(Math.random()*len);
		
		for(i = 0; i < len; i++){
		  if(document.getElementById('indWerbung').value == i){
		    document.getElementById(werbung[i].id).style.display = 'block';
		    document.getElementById(werbung[i].id).style.visibility = 'visible';
		    m = i;
		  }else{
        document.getElementById(werbung[i].id).style.display = 'none';
        document.getElementById(werbung[i].id).style.visibility = 'hidden';		  
		  }
    }

    if(m + 1 < len){
      document.getElementById('indWerbung').value = m + 1;
    }else{
      document.getElementById('indWerbung').value = 0;
    }
    
    setTimeout(nextPic, iTimer);
	}
}

function nextPic(){
  werbung();
}
	
Compat.addEventHandler(window, "load", werbung);