function MM_swapImgRestore() { 
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { 
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { 
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { 
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}
/** ******************************************************************
 * Diese Funktion schaltet die Untergebietsanzeige um.
 * ****************************************************************** */
function oldExpand (typ,id) {
  if (typ == "gebiet") {
    geb_obj_id="geb_" + id;
    gfx_obj_id="img_" + id;
    var obj_sel=document.getElementById(geb_obj_id);
    var obj_gfx=document.getElementById(gfx_obj_id);
    if (obj_sel.style.display == "none") {
      obj_sel.style.display="block";
      obj_gfx.src="images/234_plusminus_m.gif";
    } else {
      obj_sel.style.display="none";
      obj_gfx.src="images/234_plusminus_p.gif";
    }
  } else {
    sel_obj_id="sel_" + id;
    gfx_obj_id="inf_" + id;
    var obj_sel=document.getElementById(sel_obj_id);
    var obj_gfx=document.getElementById(gfx_obj_id);
    if (obj_sel.style.display == "block") {
      obj_sel.style.display="none";
      obj_gfx.src="images/234_info.gif";
    } else {
      obj_sel.style.display="block";
      obj_gfx.src="images/234_info.gif";
    }
  }
}

function doExpand(paraNum,arrowNum){
  //expand the paragraph and rotate the arrow; collapse and rotate it back
  var obj_tab=document.getElementById(paraNum);
  var obj_gfx=document.getElementById(arrowNum);
  if (obj_tab.style.display == "none") {
  obj_tab.style.display = "block";
  obj_gfx.src="images/arrowdn.gif";
  } else {
  obj_tab.style.display = "none";
  obj_gfx.src="images/arrowrt.gif"
  }
  //if (paraNum.style.display=="none"){paraNum.style.display="";arrowNum.src="internetgrafik/arrowdn.gif"}
  //else{paraNum.style.display="none";arrowNum.src="internetgrafik/arrowrt.gif"}
}
function doExpand2(paraNum,arrowNum){

  //expand the paragraph and rotate the arrow; collapse and rotate it back
  var obj_tab=document.getElementById(paraNum);
  var obj_gfx=document.getElementById(arrowNum);
  if (obj_tab.style.display == "none") {
    obj_tab.style.display = "block";
    obj_gfx.src="" + image_minus;
    // alert ("gesetzt :" + image_plus);
  } else {
    obj_tab.style.display = "none";
    obj_gfx.src="" + image_plus;
    // alert ("gesetzt :" + image_plus);
  }
  //if (paraNum.style.display=="none"){paraNum.style.display="";arrowNum.src="internetgrafik/arrowdn.gif"}
  //else{paraNum.style.display="none";arrowNum.src="internetgrafik/arrowrt.gif"}
}

/** ******************************************************************
 * Diese Funktion schaltet die Untergebietsanzeige um.
 * ****************************************************************** */
function myExpand (typ,id) {
  if (typ == "gebiet") {
    if (document.getElementById ("geb_" + id)) {
      geb_obj_id="geb_" + id;
      gfx_obj_id="img_" + id;
      var obj_sel=document.getElementById(geb_obj_id);
      var obj_gfx=document.getElementById(gfx_obj_id);

      if (obj_sel.style.display == "none") {
	obj_sel.style.display="block";
	obj_gfx.src="images/234_plusminus_m.gif";
      } else {
	obj_sel.style.display="none";
	obj_gfx.src="images/234_plusminus_p.gif";
      }
    }
  } else {
    if (document.getElementById ("sel_" + id)) {
      sel_obj_id="sel_" + id;
      gfx_obj_id="inf_" + id;
      var obj_sel=document.getElementById(sel_obj_id);
      var obj_gfx=document.getElementById(gfx_obj_id);

      if (obj_sel.style.display != "block") {
				obj_sel.style.display="block";
				obj_gfx.src="images/234_plusminus_m.gif";
      } else {
				obj_sel.style.display="none";
				obj_gfx.src="images/234_plusminus_p.gif";
      }
    }
  }
}


/** ******************************************************************
 * Schaltet alle Gebietsbeschreibungen im Array list um.
 * ****************************************************************** */
function collapseTree (list) {

  for (var i=0; i < list.length; ++i) {
    // alert ("pruefe " + list[i] + " ab.");
    if (document.getElementById ("geb_" + list[i])) {
      // Gebietsbeschreibung vorhanden
      myExpand ('gebiet', list[i]);
    } 
  }
}
function collapseStreets (list) {
  for (var i=0; i < list.length; ++i) {
    // alert ("pruefe " + list[i] + " ab.");
    if (document.getElementById ("sel_" + list[i])) {
      // Gebietsbeschreibung vorhanden
      myExpand ('strasse', list[i]);
    } 
  }
}