SV_BigPopupParams = 'width=640,height=520,scrollbars=auto,resizable,screenX=150,screenY=10';

function show(ebene)
	{
	if(document.layers)
		document.layers[ebene].visibility="show";
	else
		document.all[ebene].style.visibility="visible"; 
	}


function hide(ebene)

	{
	if(document.layers)
		document.layers[ebene].visibility="hide";
	else
		document.all[ebene].style.visibility="hidden";
	}

	  var old;
	  var oldmem;
	  var oldsub;

	if(document.layers) 
	{
		window.captureEvents(Event.MOUSEDOWN);
		window.onmouseUP=mouseout; }
	else { document.onmouseUP=mouseout; 
	}


function menu(ebene) 
	{
	  if(!old)
	    old=oldmem;
	  if(old!=ebene) 
	{
	   show(ebene);
	   old=ebene; }
	  else
	    old=""; 
	}


function checkmenu(ebene) 
	{
	  if(old && old!=ebene) {
	    hide(old); show(ebene); old=ebene; }
	  submenu(); 
	}


function mouseout() 
	{
	  if(old)
	  hide(old); 
	oldmem=old; old="";
	  submenu(); 
	}


function submenu(ebene) 
	{
	  if(oldsub) { hide(oldsub); oldsub=""; }
	  if(ebene) 
	{
	    show(ebene); oldsub=ebene; } 
	}