function PrzelaczPolaAnkiety(obj) {
  if(document.getElementById("4_9").checked)
    document.getElementById("4_inneBlock").style.display = 'block';
  else {
    document.getElementById("4_inneBlock").style.display = 'none';
    document.getElementById("4_inne").value = '';    
  }  
  if(document.getElementById("6_1").checked)
    document.getElementById("6_jakieBlock").style.display = 'block';
  else {
    document.getElementById("6_jakieBlock").style.display = 'none';    
    document.getElementById("6_jakie").value = '';
  }
  if(document.getElementById("7_1").checked)
    document.getElementById("7_1_dlaczegoBlock").style.display = 'block';
  else {
    document.getElementById("7_1_dlaczegoBlock").style.display = 'none';
    document.getElementById("7_1_dlaczego").value = '';
  }
  if(document.getElementById("7_2").checked)
    document.getElementById("7_2_dlaczegoBlock").style.display = 'block';
  else {
    document.getElementById("7_2_dlaczegoBlock").style.display = 'none';
    document.getElementById("7_2_dlaczego").value = '';
  }
  if(document.getElementById("8_1").checked)
    document.getElementById("8_jakieBlock").style.display = 'block';
  else {
    document.getElementById("8_jakieBlock").style.display = 'none';
    document.getElementById("8_jakie").value = '';
  }
  if(document.getElementById("9_1").checked)
    document.getElementById("9_jakieBlock").style.display = 'block';
  else {
    document.getElementById("9_jakieBlock").style.display = 'none';
    document.getElementById("9_jakie").value = '';
  }  
  if(document.getElementById("18_3").checked)
    document.getElementById("18_dlaczegoBlock").style.display = 'block';
  else {
    document.getElementById("18_dlaczegoBlock").style.display = 'none';    
    document.getElementById("18_dlaczego").value = ''
  }
}

var iaz_preserved_elements = [];
var iaz_preserved_zindexes = [];

function ie_apply_zindex(element_id, zindex, context_id) {
   // default values
   if (undefined == zindex) { zindex = 1; }
   var context = (undefined == context_id ? $(context_id) : $(document.body));
   var element = $(element_id);

   // undo past ie_apply_zindex()
   for (i = iaz_preserved_elements.length-1; i >= 0; i--) {
      iaz_preserved_elements[i].setStyle({'z-index': iaz_preserved_zindexes[i]});
   }
   iaz_preserved_elements = [];
   iaz_preserved_zindexes = [];

   // find relative-positioned ancestors of element within context
   element.ancestors().each(
      function(ancestor) {
         if ('relative' == ancestor.getStyle('position')) {
            // preserve ancestor's current z-index
            iaz_preserved_elements.push(ancestor);
            iaz_preserved_zindexes.push( ancestor.getStyle('z-index') );

            // apply z-index to ancestor
            ancestor.setStyle({'z-index': zindex});
         }
         if (ancestor == context) { throw $break; }
      }
   );
}