function OnFocus(id, valor_atual){
	var obj = document.getElementById(id);
	if (obj.value==valor_atual){
		obj.value='';
		if (id == "form_senha" || id == "form_comf_senha"){
			obj.type = "password";
		}
	}
}
function OnBlur(id, valor_atual){
	var obj = document.getElementById(id);
	if (obj.value==''){
		obj.value=valor_atual;
		if (id == "form_senha" || id == "form_comf_senha"){
			obj.type = "text";
		}
	}
}

function mostrar(id) {
	var obj = document.getElementById(id);
	
	if (obj.style.display == "" || obj.style.display == "none") {
			obj.style.display = "block";
		}else{
			obj.style.display = "none";
		}
	}