function changeBox() 
{
  document.getElementById('nopass_div').style.display='none';
  document.getElementById('pass_div').style.display='';
  document.getElementById('pass').focus();
}

function restoreBox() 
{
	if(document.getElementById('pass').value=='')
	{
	  document.getElementById('nopass_div').style.display='';
	  document.getElementById('pass_div').style.display='none';
	}
}