function einblenden(id)
{
	if(document.getElementById(id).style.display == "none")
	{
	document.getElementById(id).style.display = "block";
	}
	else
	{
	document.getElementById(id).style.display = "none";
	}
}


function auswahl(action)
{
var laenge = document.form2.elements.length;

for(var i = 2; i < laenge; i++) 
  {
	if(action=="all"){
  	document.form2.elements[i].checked = true;
 	} else {
  	document.form2.elements[i].checked = false;
 	}
  }
}

function clip (id) {
if (document.getElementById("span_" + id).style.display == 'none') {
document.getElementById("span_" + id).style.display = "block"; }
else {
document.getElementById("span_" + id).style.display = "none"; } }