function maz()
   {
     window.status=""
   }

if (document.images) {
   j1 = new Image
   m1 = new Image
   j1.src = 'img/main.gif'
   m1.src = 'img/main_.gif'

   j2 = new Image
   m2 = new Image
   j2.src = 'img/about.gif'
   m2.src = 'img/about_.gif'

   j3 = new Image
   m3 = new Image
   j3.src = 'img/centrum.gif'
   m3.src = 'img/centrum_.gif'

   j4 = new Image
   m4 = new Image
   j4.src = 'img/photos.gif'
   m4.src = 'img/photos_.gif'

   j5 = new Image
   m5 = new Image
   j5.src = 'img/news.gif'
   m5.src = 'img/news_.gif'

   j6 = new Image
   m6 = new Image
   j6.src = 'img/radlin.gif'
   m6.src = 'img/radlin_.gif'

   j7 = new Image
   m7 = new Image
   j7.src = 'img/kontakt.gif'
   m7.src = 'img/kontakt_.gif'
}   

   else { 
   
   j1 = ""
   m1 = ""
   document.p1 = ""
   j2 = ""
   m2 = ""
   document.p2 = ""
   j3 = ""
   m3 = ""
   document.p3 = ""
   j4 = ""
   m4 = ""
   document.p4 = ""
   j5 = ""
   m5 = ""
   document.p5 = ""
   j6 = ""
   m6 = ""
   document.p6 = ""
   j7 = ""
   m7 = ""
   document.p7 = ""

    }

function sprawdz(wpisano) {

if (wpisano.wpis.value == "")  {
 alert ("Nic nie wpisano!")
 wpisano.wpis.focus()
 return false 
                                 }

else if (wpisano.podpis.value == "")  {
 alert ("Podaj swoje imiê lub nick.")
 wpisano.podpis.focus()
 return false 
                                 }

                            }

function powieksz()   {
    dwa = window.open("sl.html","tecza","resizable=0,scrollbars=1,menubar=0,width=505,height=700");
                      }