function setVisibility(div)
 {
  var form = document.getElementById("formRegister");
  if(form.opcja.checked)
	 {
	  document.getElementById(div).style.display = "block";
	  //document.getElementById('div_prywatni').style.display = "none";
	 }
  else
	 {
	  document.getElementById(div).style.display = "none";
          //document.getElementById('div_prywatni').style.display = "block";
	 }
 }

function setVisibility2(div)
 {
  var form = document.getElementById("formRegister");
  if(form.opcja2.checked)
	 {
	  document.getElementById(div).style.display = "block";
	  //document.getElementById('div_prywatni').style.display = "none";
	 }
  else
	 {
	  document.getElementById(div).style.display = "none";
          //document.getElementById('div_prywatni').style.display = "block";
	 }
 }

function potwierdz_usun(form)
{
 var x=document.getElementById(form);

  if(window.confirm('Czy na pewno chcesz usunac dane ?'))
   {
    x.tryb.value='delete';
    return true;
   }
  else return false;
}