var a = null;
var b = null;
var c = null;
var d = null;


function ukryj()
{
document.getElementById('spanImie').style.visibility = 'hidden';  
document.getElementById('spanTelefon').style.visibility = 'hidden';
document.getElementById('spanEmail').style.visibility = 'hidden';
document.getElementById('spanTresc').style.visibility = 'hidden';
}


function sprawdz()
{
test('poleImie');
test('poleTresc');
test('poleTelefon');
test('poleEmail');

if(a == 1 && b == 1 && c == 1 && d == 1) return true;
else return false;
   
}

function test(id)
{
   if(id == 'poleImie')
   {
      if (document.getElementById('poleImie').value == '') 
      { 
         document.getElementById('spanImie').innerHTML= '<img src="image/nie.gif" alt="X" />'; 
         document.getElementById('spanImie').style.visibility = 'visible';                       
         a = -1;
      }
      else
      {
         document.getElementById('spanImie').innerHTML= '<img src="image/tak.gif" alt="" />';  
         document.getElementById('spanImie').style.visibility = 'visible';
         a = 1;
      } 
   }
   else if(id == 'poleTelefon')
   {
      if (document.getElementById('poleTelefon').value == '') 
      { 
         document.getElementById('spanTelefon').innerHTML= '<img src="image/nie.gif" alt="X" />'; 
         document.getElementById('spanTelefon').style.visibility = 'visible';                       
         b = -1;
      }
      else
      {
         document.getElementById('spanTelefon').innerHTML= '<img src="image/tak.gif" alt="" />';  
         document.getElementById('spanTelefon').style.visibility = 'visible';
         b = 1;
      } 
   }
   else if(id == 'poleTresc')
   {
      if (document.getElementById('poleTresc').value == '') 
      { 
         document.getElementById('spanTresc').innerHTML= '<img src="image/nie.gif" alt="X" />'; 
         document.getElementById('spanTresc').style.visibility = 'visible';                       
         c = -1;
      }
      else
      {
         document.getElementById('spanTresc').innerHTML= '<img src="image/tak.gif" alt="" />';  
         document.getElementById('spanTresc').style.visibility = 'visible';
         c = 1;
      } 
   }
   if(id == 'poleEmail')
   {

    reg = /^[a-zA-Z0-9ąćęłńóśżźĄĆĘŁŃÓŚŻŹ]{1,30}@[a-zA-Z0-9ąćęłńóśżźĄĆĘŁŃÓŚŻŹ]+(\.[a-zA-Z0-9ąćęłńóśżźĄĆĘŁŃÓŚŻŹ]+)+$/;
    wyn = document.getElementById('poleEmail').value.match(reg);
    if (wyn == null) 
    {
        document.getElementById('spanEmail').innerHTML= '<img src="image/nie.gif" alt="X" />'; 
				document.getElementById('spanEmail').style.visibility = 'visible';                      
        d = -1;
    }
    else
    {
         document.getElementById('spanEmail').innerHTML= '<img src="image/tak.gif" alt="" />';  
         document.getElementById('spanEmail').style.visibility = 'visible';
         d = 1;
    }
   }
}