function wszystko() // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.zdjecie1.visibility = "hide";
	   document.zdjecie2.visibility = "hide";
	   document.zdjecie3.visibility = "hide";	   
	   document.zdjecie4.visibility = "hide";
	   document.zdjecie5.visibility = "hide";
    }
   else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
       document.getElementById('zdjecie1').style.visibility = "hidden";
	   document.getElementById('zdjecie2').style.visibility = "hidden";
     document.getElementById('zdjecie3').style.visibility = "hidden";
	 document.getElementById('zdjecie4').style.visibility = "hidden";
	  document.getElementById('zdjecie5').style.visibility = "hidden";
  }
   else if(document.all)	// IE 4
   {
       document.all.zdjecie1.style.visibility = "hidden";
	   document.all.zdjecie2.style.visibility = "hidden";
       document.all.zdjecie3.style.visibility = "hidden";
	   document.all.zdjecie4.style.visibility = "hidden";
	   document.all.zdjecie5.style.visibility = "hidden";
   }
}



function toggleBox(szDivID, iState) // 1 visible, 0 hidden
{

        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";


}