function AGB_check() {

  	var agb = document.getElementById('agb').checked  	
  	
  	if (agb == false) {
  		document.getElementById('button_bestellen').style.visibility = "hidden";
  		
  		document.getElementById('hinweis_false').style.visibility = "visible";
  		document.getElementById('hinweis_false').style.display = "block";
  		document.getElementById('hinweis_true').style.display = "none";
  		document.getElementById('hinweis_true').style.visibility = "hidden";
  		
  	} else {
  		document.getElementById('button_bestellen').style.visibility = "visible";
  		
  		document.getElementById('hinweis_true').style.visibility = "visible";
  		document.getElementById('hinweis_true').style.display = "block";
  		document.getElementById('hinweis_false').style.display = "none";
  		document.getElementById('hinweis_false').style.visibility = "hidden";
  	}
}

function init() {
	if(document.getElementById('zubehoer-text').innerHtml = '') {
			alert('leer');
	}
}