function mudaTipo(){		
		document.getElementById('hide').style.display = 'none';				
		document.getElementById('password').style.display = 'inline';
		document.getElementById('password').focus();	
	}
	function voltaTexto(){
		if(document.getElementById('password').value == ''){
			document.getElementById('password').style.display = 'none';				
			document.getElementById('hide').style.display = 'inline';			
		}
		if(document.getElementById('username').value == ''){
			document.getElementById('username').value = 'Usuário';
			}
	}