// JavaScript Document

function openWindow(id){
	
	var janela = document.getElementById(id);
	var overlay = document.getElementById("overlay");
	
	janela.style.display = "block";
	overlay.style.display = "block";
	
	overlay.style.height = document.body.offsetHeight+"px";

}




function closeWindow(id){

	var janela = document.getElementById(id);
	var overlay = document.getElementById("overlay");
	
	janela.style.display = "none";
	overlay.style.display = "none";

}