function wszystko() // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.a1.visibility = "hide";
	   document.a2.visibility = "hide";
	   document.a3.visibility = "hide";
	   document.a4.visibility = "hide";
	   document.a5.visibility = "hide";
	   document.a6.visibility = "hide";
	   document.a7.visibility = "hide";
	   document.a8.visibility = "hide";
	   document.a9.visibility = "hide";
	   document.a10.visibility = "hide";
	   document.a11.visibility = "hide";
	   document.a12.visibility = "hide";
	
    }
   else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
       document.getElementById('a1').style.visibility = "hidden";
       document.getElementById('a2').style.visibility = "hidden";
       document.getElementById('a3').style.visibility = "hidden";
       document.getElementById('a4').style.visibility = "hidden";	   
       document.getElementById('a5').style.visibility = "hidden";
       document.getElementById('a6').style.visibility = "hidden";
       document.getElementById('a7').style.visibility = "hidden";
       document.getElementById('a8').style.visibility = "hidden";
       document.getElementById('a9').style.visibility = "hidden";
       document.getElementById('a10').style.visibility = "hidden";
	   document.getElementById('a11').style.visibility = "hidden";
	   document.getElementById('a12').style.visibility = "hidden";
   
  }
   else if(document.all)	// IE 4
   {
       document.all.a1.style.visibility = "hidden";
	   document.all.a2.style.visibility = "hidden";
	   document.all.a3.style.visibility = "hidden";
	   document.all.a4.style.visibility = "hidden";
	   document.all.a5.style.visibility = "hidden";
	   document.all.a6.style.visibility = "hidden";
	   document.all.a7.style.visibility = "hidden";
	   document.all.a8.style.visibility = "hidden";
	   document.all.a9.style.visibility = "hidden";
	   document.all.a10.style.visibility = "hidden";
       document.all.a11.style.visibility = "hidden";
       document.all.a12.style.visibility = "hidden";
   }
}



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

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


}
function odznacz() {


for (n = 1; n <= 10; ++n)
{
 var moj2 = document.getElementById('in'+n);
 moj2.checked = false;
 //alert('in'+n);
}
  
 
} 

function zaznacz(element) {

 var moj = document.getElementById(element);
 moj.checked = true;  
 
}