function checkrequired(which){
var pass=true



if (document.step.user.value.length <"5")
{
document.step.user.style.backgroundColor="yellow"
document.getElementById("login").style.display = 'block';
return false
}else{
document.getElementById("login").style.display = 'none';
document.step.user.style.backgroundColor="white"
}

if (document.step.pass1.value.length <"5")
{
document.step.pass1.style.backgroundColor="yellow"
document.getElementById("pass").style.display = 'block';
return false
}else{
document.getElementById("pass").style.display = 'none';
document.step.pass1.style.backgroundColor="white"
}

if (document.step.pass2.value.length <"5")
{
document.step.pass2.style.backgroundColor="yellow"
document.getElementById("rpass").style.display = 'block';
return false
}else{
document.getElementById("rpass").style.display = 'none';
document.step.pass2.style.backgroundColor="white"
}

if (document.step.pass1.value != document.step.pass2.value)
{
document.step.pass2.style.backgroundColor="red"
document.step.pass1.style.backgroundColor="red"
document.getElementById("rpass").style.display = 'block';
return false
}else{
document.step.pass2.style.backgroundColor="white"
document.step.pass1.style.backgroundColor="white"
document.getElementById("rpass").style.display = 'none';
}


// sprawdzanie czy login jest taki sam jak pass



if (document.step.pass1.value == document.step.user.value)
{
document.step.user.style.backgroundColor="lightgreen"
document.step.pass2.style.backgroundColor="lightgreen"
document.step.pass1.style.backgroundColor="lightgreen"
// pokazac same - w innym przypadku ukryc
document.getElementById("same").style.display = 'block';
return false
}else{
document.getElementById("same").style.display = 'none';
document.step.user.style.backgroundColor="white"
document.step.pass2.style.backgroundColor="white"
document.step.pass1.style.backgroundColor="white"
}



if (document.step.email.value =="")
{
document.step.email.style.backgroundColor="yellow"
document.getElementById("mail").style.display = 'block';
return false
}else{
document.getElementById("mail").style.display = 'none';
document.step.email.style.backgroundColor="white"
}
return true
}