var imgMinus = new Image();
imgMinus.src = 'image/button/opt_geoffnet.gif';
var imgPlus = new Image();
imgPlus.src = 'image/button/opt_geschlosst.gif';
function FolderExpand( $1)
{
  var ChildStyle, CurrentStyle, CurA, CurA_Href;
  CurA = eval( $1 + 'a2');
  CurA_Href = new String( CurA.href);

	ChildStyle = eval( $1 + 'Child').style.display;
	CurrentStyle = ( ( ChildStyle == 'none') || ( ChildStyle == '')) ? 'block' : 'none';
	eval( $1 + 'Child').style.display = CurrentStyle;
	
	CurA_Href = CurA_Href.substr( 0, CurA_Href.length - 1);
//	CurA.href = CurA_Href + ( ( CurrentStyle == 'block') ? '2' : '0');
	var CurImg = document.images.item( $1 + '_Img');
	CurImg.src = ( CurrentStyle == 'block') ? imgMinus.src : imgPlus.src;
//  if( ( Current != null) && ( eval( $1 + 'Child') != Current))
//    Current.style.display = 'none';
//  Current = eval( $1 + 'Child');
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function hideMenu()
{
	MM_showHideLayers('MenuLayer1','','hide','MenuLayer2','','hide','MenuLayer3','','hide','MenuLayer4','','hide','MenuLayer5','','hide','MenuLayer6','','hide');
}