nn4 = (document.layers)? true:false
  ie4 = (document.all)? true:false


function show_mieszkania(){
        
         if(nn4) { // Navigator
        document.layers["mieszkania"].visibility = "show";
        document.layers["zamiana"].visibility = "show";
        document.layers["domy"].visibility = "hide";
        document.layers["dzialki"].visibility = "hide";
        document.layers["obiekty"].visibility = "hide";
        //document.getElementById("tekst2").style.top = -55;


    } else{ // Explorer
        document.getElementById("mieszkania").style.visibility = "visible";
        document.getElementById("zamiana").style.visibility = "visible";
        document.getElementById("domy").style.visibility = "hidden";
        document.getElementById("dzialki").style.visibility = "hidden";
        document.getElementById("obiekty").style.visibility = "hidden";
    }
        document.getElementById("3").style.top = -85;
 }

 function show_domy(){

         if(nn4) { // Navigator
        document.layers["domy"].visibility = "show";
        document.layers["zamiana"].visibility = "show";
        document.layers["mieszkania"].visibility = "hide";
        document.layers["dzialki"].visibility = "hide";
        document.layers["obiekty"].visibility = "hide";
          }
       //if(ie4) { // Explorer
       else {
        document.getElementById("domy").style.visibility = "visible";
        document.getElementById("zamiana").style.visibility = "visible";
        document.getElementById("mieszkania").style.visibility = "hidden";
        document.getElementById("dzialki").style.visibility = "hidden";
        document.getElementById("obiekty").style.visibility = "hidden";
          }
            document.getElementById("3").style.top = -107;
            document.getElementById("domy").style.top = -55;

 }
 
 function show_dzialki(){
         if(nn4) { // Navigator
        document.layers["dzialki"].visibility = "show";
        document.layers["zamiana"].visibility = "hide";
        document.layers["mieszkania"].visibility = "hide";
        document.layers["domy"].visibility = "hide";
        document.layers["obiekty"].visibility = "hide";

    } else { // Explorer
        document.getElementById("dzialki").style.visibility = "visible";
        document.getElementById("zamiana").style.visibility = "hidden";
        document.getElementById("mieszkania").style.visibility = "hidden";
        document.getElementById("domy").style.visibility = "hidden";
        document.getElementById("obiekty").style.visibility = "hidden";
    }
      document.getElementById("3").style.top = -107;
      document.getElementById("dzialki").style.top = -83;
 }


function show_obiekty(){
         if(nn4) { // Navigator
        document.layers["obiekty"].visibility = "show";
        document.layers["zamiana"].visibility = "hide";
        document.layers["mieszkania"].visibility = "hide";
        document.layers["domy"].visibility = "hide";
        document.layers["dzialki"].visibility = "hide";

    } else { // Explorer
        document.getElementById("obiekty").style.visibility = "visible";
        document.getElementById("zamiana").style.visibility = "hidden";
        document.getElementById("mieszkania").style.visibility = "hidden";
        document.getElementById("domy").style.visibility = "hidden";
        document.getElementById("dzialki").style.visibility = "hidden";
    }
        document.getElementById("3").style.top = -107;
        document.getElementById("obiekty").style.top = -111;
 }
 
 
 function show_biuro(){

         if(nn4) { // Navigator
        document.layers["biuro"].visibility = "show";
        document.layers["biuro2"].visibility = "show";
        document.layers["osoba"].visibility = "hide";
        //document.getElementById("tekst2").style.top = -55;


    } else  { // Explorer
        document.getElementById("biuro").style.visibility = "visible";
        document.getElementById("biuro2").style.visibility = "visible";
        document.getElementById("osoba").style.visibility = "hidden";
    }
        document.getElementById("dane").style.top = -60;
        document.getElementById("biuro2").style.top = -50;
 }

 function show_osoba(){

         if(nn4) { // Navigator
        document.layers["osoba"].visibility = "show";
        document.layers["biuro"].visibility = "hide";
        document.layers["biuro2"].visibility = "hide";

    } else  { // Explorer
        document.getElementById("osoba").style.visibility = "visible";
        document.getElementById("biuro").style.visibility = "hidden";
        document.getElementById("biuro2").style.visibility = "hidden";
    }
           document.getElementById("dane").style.top = 55;
            document.getElementById("domy").style.top = -55;

 }