function change(bild_name) {
	var bild = document.getElementById('image');	
	bild.src = "image/"+bild_name;
}

function enableField()
{
document.order.senden.disabled=false;
}
function disableField()
{
document.order.senden.disabled=true;
}


function weiter () {
  if (document.order.correct.checked == true) {
    enableField();
  } else {
    disableField();
  }
}