// Hide instruction text for password field
function txt2pwd(obj, heslo){
	obj.style.visibility = "hidden";
	document.getElementById(heslo).focus();
}

// Display instruction text for password field
function pwd2txt(obj, txt){
	if(obj.value.length==0){
		document.getElementById(txt).style.visibility = "visible";
	}
}

// Display instruction text [str] if field is blank
// Clear instruction text if field is clicked
function resetField(obj,str){
	if(obj.value.length==0){
		obj.value=str;
		return;
	}
	if(obj.value==str){
		obj.value="";
	}
}

 function changeBox()
 {
    document.getElementById('div1').style.display='none';
    document.getElementById('div2').style.display='';
    document.getElementById('heslo').focus();
 }
 function restoreBox()
 {
    if(document.getElementById('heslo').value=='')
    {
      document.getElementById('div1').style.display='';
      document.getElementById('div2').style.display='none';
    }
 }
 
 
function ShowLogin(){
	document.getElementById('block-registration').style.display = 'none';
	document.getElementById('block-login').style.display = 'block';
}

//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////
function ShowRegistration(){
	document.getElementById('block-registration').style.display = 'block';
	document.getElementById('block-login').style.display = 'none';
}

function ShowAddress2Form($checked){
	if($checked == true)
		document.getElementById('address2_form').style.display = 'block';
	else
		document.getElementById('address2_form').style.display = 'none';
}