function change_image (imageNo) {
            var mi;
 
            if (document.all) mi=document.all["show"];
            if (document.layers) mi=document.images["show"];
            if (navigator.userAgent.indexOf('Gecko')>-1)
mi=document.getElementById("show");
 
            if (imageNo==0) mi.src="images/navi/off.gif";
			if (imageNo==1) mi.src="images/navi/on_elearn.gif";
            if (imageNo==2) mi.src="images/navi/on_untern.gif";
			if (imageNo==3) mi.src="images/navi/on_interface.gif";
			if (imageNo==4) mi.src="images/navi/on_logo-print.gif";
			if (imageNo==5) mi.src="images/navi/on_logo-untern.gif";
			if (imageNo==6) mi.src="images/navi/on_shop-logo.gif";
			if (imageNo==7) mi.src="images/navi/on_logo.gif";
			if (imageNo==8) mi.src="images/navi/on_logo-comm.gif";
			if (imageNo==9) mi.src="images/navi/on_medizin.gif";
			if (imageNo==10) mi.src="images/navi/on_consulting.gif";
			if (imageNo==11) mi.src="images/navi/on_kommunal.gif";
			if (imageNo==12) mi.src="images/navi/on_it.gif";
			if (imageNo==13) mi.src="images/navi/on_verlag.gif";
			if (imageNo==14) mi.src="images/navi/on_reisen.gif";
			if (imageNo==15) mi.src="images/navi/on_unterhaltung.gif";
			if (imageNo==16) mi.src="images/navi/on_untern_bald.gif";
			if (imageNo==17) mi.src="images/navi/on_logo-print_untern.gif";
			if (imageNo==18) mi.src="images/navi/on_elearn_geheim.gif";
			if (imageNo==19) mi.src="images/navi/on_verlag_geheim.gif";
			if (imageNo==20) mi.src="images/navi/on_consulting_bald.gif";
			if (imageNo==21) mi.src="images/navi/on_medizin_bald.gif";
			if (imageNo==22) mi.src="images/navi/off.gif";
			
}


function MM_preloadImages() { //v3.0
  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_swapImgRestore() { //v3.0
  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_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_swapImage() { //v3.0
  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_showHideLayers() { //v3.0
  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 MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}