//AblaufListe

var currentOpen = null; 

function ablaufMenu(parentId) {
myParent = document.getElementById("ablauf" + parentId);

if(currentOpen != null) {
	currentOpen.style.display = "none";
} 
currentOpen = myParent;

if (myParent.style.display=="none") {
	myParent.style.display="block";
	} else {
	currentOpen = null;
		myParent.style.display="none";
	}
}